Bituminous coal is soft, black in color, and produces soot upon handling. The answer is A) bituminous coal.
Bituminous coal is a plentiful coal type found in the United States, characterized by its soft and black composition. It falls between sub-bituminous coal and anthracite coal in terms of its rank. Widely used for electricity generation and as a heat source, bituminous coal is highly valued for its energy content. However, when burned, it emits a considerable amount of soot, contributing to air pollution and potential health concerns. Despite its drawbacks, bituminous coal remains a vital resource in the energy sector due to its abundance and ability to generate power and heat.
The answer is A) "Bituminous ".
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Quartzite
A. always shows strong compositional banding.
B. breaks around the separate grains of quartz that compose it.
C. is basically a solid mass of interlocking quartz grains.
D. is always either white or gray.
Quartzite is basically a solid mass of interlocking quartz grains. Option C is correct.
Quartzite is a metamorphic rock that is formed from the metamorphism of quartz-rich sandstone. It is composed primarily of interlocking quartz grains and is extremely hard and durable. Unlike its parent rock, quartzite does not show any compositional banding, and it is not always white or gray. In terms of its texture, quartzite has a grainy or sugary appearance, and it often breaks through the quartz grains rather than around them. Therefore, the correct option is C - Quartzite is basically a solid mass of interlocking quartz grains. Quartzite is a hard, non-foliated metamorphic rock that is formed from the metamorphism of pure quartz sandstone or siltstone. It is composed of interlocking quartz grains that have been recrystallized and fused together. The recrystallization process that occurs during the formation of quartzite results in the interlocking of the quartz grains, which gives the rock its distinctive hardness, durability, and resistance to weathering.
Quartzite is available in a wide range of colors, including white, gray, yellow, pink, red, green, and blue. The colors of quartzite are determined by the presence of impurities, such as iron oxide, that were present in the original sandstone. These impurities can create a range of colors and patterns in the quartzite, making it a popular choice for decorative and ornamental purposes.
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What has been done to prevent another lethal buildup of carbon dioxide in Lake Nyos?
To prevent another lethal buildup of carbon dioxide in Lake Nyos, a degassing system has been installed. This system involves the use of pipes to siphon water from the bottom of the lake, where the carbon dioxide is highly concentrated.
As the water rises through the pipes, the dissolved carbon dioxide gas is released into the atmosphere in a controlled manner, significantly reducing the risk of a sudden, catastrophic release. This degassing system has been successful in decreasing the concentration of dissolved carbon dioxide in the lake, thereby minimizing the potential for a lethal gas release event. Additionally, ongoing monitoring and research efforts are in place to better understand the dynamics of the lake and the factors that contribute to the buildup of carbon dioxide. Further measures include educating local communities about the risks associated with Lake Nyos and establishing evacuation plans in case of an emergency. This combination of technological, scientific, and community-based approaches has been crucial in mitigating the dangers posed by a potential lethal buildup of carbon dioxide in Lake Nyos.
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A decade ago, the Long Valley caldera was releasing 1,000 tons of carbon dioxide a day. Today, it is only releasing 300 tons a day. This suggests that ______.
This suggests that the decrease in carbon dioxide emissions from the Long Valley caldera, from 1,000 tons per day a decade ago to 300 tons per day today, suggests that there has been a decrease in volcanic activity in the area.
The Long Valley caldera's reduction in carbon dioxide emissions from 1,000 tonnes per day ten years ago to 300 tonnes per day today shows that the region's volcanic activity has decreased.
One of the many gases that are released from volcanic vents is carbon dioxide, and this emission is frequently indicative of volcanic activity. As a result, the Long Valley caldera's decreasing carbon dioxide emissions suggest that the region's volcanic activity has decreased over the past ten years.
However, given that volcanic systems can be unexpected and subject to fast change, it is still crucial to keep an eye out for any indications of resurgent activity.
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True or false: Mount St. Helens erupted without warning in late March 1980.
True. On March 27, 1980, Mount St. Helens erupted without warning, resulting in a catastrophic event that killed 57 people and caused extensive damage to the surrounding area.
The eruption was triggered by an earthquake that caused the north face of the volcano to collapse, which in turn released a massive amount of ash, rock, and gas into the atmosphere. The eruption continued for several weeks, with a series of explosive eruptions and lava flows causing further destruction. The event was a wake-up call for the importance of monitoring and predicting volcanic activity, and it led to significant advancements in volcanic monitoring and hazard mitigation. Today, Mount St. Helens is closely monitored for signs of activity, and visitors can explore the area through hiking trails and educational programs.
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Which commodity or product would be found closest to the market town in von Thunen’s model?
Answer:
According to von Thunen's model, the commodity or product that would be found closest to the market town would be the one with the highest value or the highest cost of transportation. This is because the cost of transportation decreases as the distance from the market town increases, and therefore it makes economic sense to produce and sell the most valuable or expensive products closest to the market town, where they can be sold for a higher price. As the distance from the market town increases, it becomes more economical to produce and sell lower value or bulkier commodities, which are cheaper to transport over longer distances.
A worm burrow is an example of which type of fossilization?
A) Cast and mold
B) Carbonization
C) Trace fossil
D) Mummification
C) Trace fossil. A worm burrow is not the actual physical remains of the worm, but rather a trace left behind by its activity. Trace fossils include burrows, tracks, and other evidence of an organism's presence, but do not involve the preservation of the actual body.
A trace fossil is formed when the evidence of an organism's activity, such as a worm burrow, is preserved in the fossil record. This is different from carbonization, which involves the preservation of organic material through the conversion of its original components into a carbon film, and mummification, which is the preservation of a soft tissue through drying or chemical processes. Carbonization involves the compression and preservation of organic matter into a thin layer of carbon, while mummification involves the desiccation and preservation of a body through natural or artificial means.
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HCFCs were originally introduced as a solution to help phase out the use of CFCs. Which of the following most likely contributed to the increased levels of HCFCs in the stratosphere over the past 30 years?
Thermal inversions in the troposphere
Conversion of CO2 to HCFCs in the troposphere
Reduced albedo in the Arctic because of climate change
Leaking of refrigeration and air-conditioning units
The most likely reason for the increased levels of HCFCs in the stratosphere over the past 30 years is the leaking of refrigeration and air-conditioning units.
The increased levels of HCFCs in the stratosphere over the past 30 years can most likely be attributed to the leaking of refrigeration and air-conditioning units. HCFCs were introduced as a solution to help phase out the use of CFCs, which were found to be responsible for the depletion of the ozone layer. However, HCFCs are also potent greenhouse gases that can contribute to global warming and climate change. The most common application of HCFCs is as a refrigerant in cooling and air-conditioning systems. These systems are often prone to leaks, which can release HCFCs into the atmosphere. Once in the atmosphere, HCFCs can be transported to the stratosphere, where they can contribute to ozone depletion and climate change.
Thermal inversions in the troposphere, conversion of CO2 to HCFCs in the troposphere, and reduced albedo in the Arctic because of climate change are not likely to be significant contributors to the increased levels of HCFCs in the stratosphere. Thermal inversions occur in the lower atmosphere and do not have a direct impact on the stratosphere. CO2 is not converted to HCFCs in the troposphere, and the reduced albedo in the Arctic is not directly related to the use of HCFCs.
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In the battle of the cowshed in animal farm snowballs actions can best be described as
In the Battle of the Cowshed in animal farm snowballs actions can best be described as Heroic.
At the Battle of the Cowshed, Snowball stands out as a hero, valiantly leading the animals' defence tactics to a resounding triumph over Mr. Jones, who tries to reclaim the farm. Snowball is described as "more inventive," demonstrating his intelligence and creative thoughts.
Snowball makes the case in favor of the windmill, predicting that it will eventually serve as a labor-saving tool, while Napoleon makes the opposite case, claiming that building the windmill will divert time and resources from the more crucial work of generating food.
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The complete question is:
In the battle of the cowshed in animal farm snowballs actions can best be described as ____.
The _______ era encompasses 90 percent of Earth's history. Some of the oldest rocks ever discovered on Earth were found in western Greenland and were dated at approximately _______ billion years using isotopic dating methods. The breakup of the most recent supercontinent of _______ is responsible for the current arrangement of continents. During the Precambrian time, the oceans and atmosphere formed around Earth, and the concentration of oxygen gas eventually reached the point where it could support aerobic _______. As the Earth cooled, layers formed as gravity pulled the dense material into the interior of the planet, creating a/an _______ of dense nickel and iron. Respond to the following based on your reading. Discuss the geologic processes that formed the continents during the Precambrian era.
The Precambrian era encompasses 90 percent of Earth's history. Some of the oldest rocks ever discovered on Earth were found in western Greenland and were dated at approximately 3.8 billion years using isotopic dating methods.
The breakup of the most recent supercontinent of Pangaea is responsible for the current arrangement of continents. During the Precambrian time, the oceans and atmosphere formed around Earth, and the concentration of oxygen gas eventually reached the point where it could support aerobic life.
As the Earth cooled, layers formed as gravity pulled the dense material into the interior of the planet, creating a core of dense nickel and iron.
Geologic processes that formed the continents during the Precambrian era involved the gradual cooling and solidification of the Earth's crust, leading to the formation of continental masses.
Tectonic activity, including plate movements, resulted in the gradual merging and separation of these continental masses, forming supercontinents like Rodinia and Columbia.
Over time, erosion and deposition played a role in shaping the continents, and volcanic activity contributed to their growth and the formation of new landmasses.
The slow buildup of oxygen in the atmosphere also had a significant impact on the development of life, paving the way for more complex organisms to evolve during subsequent eras.
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what is geography definition
identify the main sources of each of the following types of nonchemical water pollution: a. solid waste b. sediment c. thermal d. noise pollution.
The main sources of each of the following types of nonchemical water pollution littering, construction, power plant, sonar equipment.
a. Solid waste pollution in water can come from a variety of sources, including littering, illegal dumping, and inadequate waste management practices. Some common examples of solid waste that can pollute water include plastic bags, food waste, and cigarette butts. b. Sediment pollution is caused by soil erosion and construction activities. When soil is disturbed, it can wash into nearby waterways and cause a variety of problems, including reduced water quality and damage to aquatic habitats. Common sources of sediment pollution include agriculture, construction sites, and logging operations.
c. Thermal pollution occurs when the temperature of water is raised due to human activities such as power plant operations and industrial processes. This can have negative effects on aquatic ecosystems, including decreased oxygen levels and changes in the types of organisms that can live in the affected waterways. d. Noise pollution in water can come from a variety of sources, including boats, sonar equipment, and construction activities. This can disrupt the behavior and communication of aquatic animals, which can have negative impacts on their survival and reproduction. Additionally, noise pollution can also have negative effects on human health and wellbeing if it is excessive or prolonged.
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Answer the topic below. Use the document to help you.
Assess the economic and social causes of deforestation in the tropical rainforest.
Intro = What is deforestation?
Para 1 = Economic causes
Para 2 = Social causes
Conclusion = What are important social or environmental causes?
Deforestation is the removal of forests, driven by economic and social factors. Economic factors drive deforestation in the tropical rainforest due to the demand for wood products like timber, furniture, and paper.
What is deforestation?Social factors contribute to deforestation as local communities depend on forests for subsistence farming, hunting, and gathering. Increasing populations lead to more demand for forest resources, causing deforestation.
Political instability, corruption, and inadequate land rights for indigenous peoples and local communities also contribute. Economic and social factors fuel deforestation in tropical rainforests - such as demand for wood products, commercial agriculture, and mining/logging.
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Why have degassing pipes been installed in Lake Nyos in Cameroon?
Which diagram shows the order of groups that controlled Egypt from 300 BCE through 1800 CE?
B. Greece -> Kingdom of Ku sh -> om an Empire controlled Egypt in the period
The area that controlled EgyptEgypt experienced a variety of empires and kingdoms from 300 BCE to 1800 CE. Below is an outline of the dynasties who, in turn, possessed control over this country:
Greece: Alexander the Great captured Egypt in 332 BCE and it then became constituent part of the Greek Empire. Subsequent to his passing, one of his commanders, Ptolemy, founded and held authority over the Ptolemaic Dynasty till 30 BCE.
Kingdom of Kus h: The indigenous N ubians, known as the Kus hites, achieved governance of Egypt in 751 BCE and declared the 25th Dynasty. This was reigned until 656 BCE, followed by regency from 590 BCE to 350 BCE
Ot to man Empire: In 1517 CE, the Turks apprehended Egypt incorporating it into their own dominion. Until early 19th century, Egypt stayed in the grips of the Ot t om an Empire
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What are the different ways in which volcanic activity can create earthquakes?
Volcanic activity can create earthquakes in various ways. One way is through the movement of magma underground.
As magma rises and moves through the Earth's crust, it can cause the surrounding rock to shift and crack, leading to seismic activity. Another way is through the release of gas and steam from the volcano, which can cause pressure changes and trigger earthquakes. Additionally, the weight of the volcanic edifice can cause stress on the underlying rock, leading to earthquakes. Finally, volcanic activity can also induce landslides and rockfalls, which can also generate seismic waves.
Volcanic activity can create earthquakes through various processes, including magma movement, tectonic faulting, and hydrothermal pressure changes. Magma movement generates pressure within the Earth's crust, causing fractures and resulting in earthquakes. Tectonic faulting involves the movement of rock layers near a volcano, creating stress and leading to seismic activity. Hydrothermal pressure changes occur when volcanic heat alters underground water systems, generating pressure that can trigger earthquakes.
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many people in sahel practice islam true or false
Answer: True
Explanation:
Rocks that form ______ in the intense heat and associated with meteoroid impacts show rare varieties of quartz minerals, droplets of once-melted metal, and shatter cones.
Rocks that form "under" in the intense heat and associated with meteoroid impacts show rare varieties of quartz minerals, droplets of once-melted metal, and shatter cones.
These rocks form under extreme conditions when a meteoroid collides with Earth's surface.
The intense heat and pressure generated during the impact cause the rocks to melt and then recrystallize, creating unique mineral structures.
Among these are rare varieties of quartz minerals, such as coesite and stishovite, which are only found in high-pressure environments.
Additionally, the extreme heat can cause metal within the rocks to melt, forming droplets of once-melted metal, which solidify upon cooling.
Shatter cones, cone-shaped fracture patterns, also form due to the intense pressure of the impact event.
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what are the major components of the southern subtropical gyre in the indian ocean? multiple select question. a cool, north-flowing western australian current a cold, south-flowing madagascar current a warm, south-flowing mozambique current east of africa a west-flowing warm segment counter to the antarctic circumpolar current a west-flowing segment along the equator
The warm, south-flowing Mozambique Current east of Africa and a warm, west-flowing warm segment opposing the Antarctic Circumpolar Current (ACC) make up the majority of the southern subtropical gyre in the Indian Ocean.
The lesser Western Australian Current is a component of the broader Leeuwin Current, which is not directly connected to the Southern Subtropical Gyre.
The Madagascar Current is a part of the larger Agulhas Current System, which is not directly linked to the Southern Subtropical Gyre.
The Mozambique Current is not a large component of the Southern Subtropical Gyre, despite the fact that it runs south along Africa's east coast.
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based on the diagram, which of the following statements best explains why the climate of the west coast of africa is drier than that of the east coast of the united states, even though they are located at similar northern latitudes?
The climate of the west coast of Africa is drier than that of the east ocean coast of the United States, even though they are located at similar northern latitudes because of the influence of ocean currents.
The ocean currents play a critical role in regulating the climate of coastal regions. The Canary Current flows from the north along the west coast of Africa, bringing cool water and air from the Atlantic Ocean.
This cooler air over the ocean leads to a stable atmosphere, which suppresses convection and limits the formation of clouds and rainfall. The warm Gulf Stream flows northward along the east coast of the United States, bringing warm, moist air from the tropics. This warm, moist air is unstable and easily rises, leading to the formation of clouds and precipitation.
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Why doesn’t the government have to shut down if there is no argument on an official federal dudget
In the event of a lack of consensus on an official federal budget, the government can avoid shutting down because several alternative measures could be taken to finance its functions.
Why doesn’t the government have to shut down if there is no argument on an official federal dudgetThe implementation of a continuing resolution is one such measure, which enables uninterrupted operations by maintaining current funding levels until there's approval for a new budget.
Another feasible option that could prevent a shutdown scenario would involve the administration operating under a debt ceiling. In utilizing such a method, the government can acquire loans to support their ongoing activities amid limited resources or a shortfall in revenue.
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as most are to the function of a gene, they are removed from the population over time through natural selection.
As most genes are involved in some type of biological function, they are subject to natural selection, which can remove them from the population over time. This occurs because genes that provide a survival or reproductive advantage to an individual are more likely to be passed on to future generations, while genes that are detrimental to an individual's fitness are less likely to be passed on.
Natural selection is a fundamental mechanism of evolution that involves the differential survival and reproduction of individuals based on their heritable traits. In the case of genes, those that provide an advantage to an individual, such as increased resistance to disease or a more efficient metabolism, will tend to be passed on to their offspring. Conversely, genes that are detrimental to an individual's fitness, such as those that cause genetic disorders or reduce reproductive success, will tend to be removed from the population over time.
This process can occur through a variety of mechanisms, including selective pressures from the environment, sexual selection, or genetic drift. As a result, the frequency of different genes in a population can change over time, leading to the evolution of new traits and the diversification of life on Earth. Overall, the function of a gene is a crucial factor in determining its fate in the context of natural selection.
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True or False? Each mineral has its own specific properties.
True. Each mineral has its own specific properties that distinguish it from other minerals. These properties include characteristics such as color, luster, hardness, crystal shape, cleavage, and specific gravity.
Color can vary widely among minerals, but it is not always a reliable indicator of a mineral's identity. Luster refers to the way a mineral reflects light and can be metallic, non-metallic, or earthy. Hardness is a measure of a mineral's resistance to scratching and is measured on the Mohs scale from 1 (softest) to 10 (hardest). Crystal shape can be distinctive for some minerals and can help in identification. Cleavage is the way a mineral breaks along flat surfaces, and specific gravity is the ratio of a mineral's weight to the weight of an equal volume of water. By examining and comparing these specific properties, geologists can identify and classify minerals.
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A tsunami is a tidal wave.
A) True
B) False
A) False. A tsunami is not a tidal wave. A tidal wave is a common term used to describe a regular, predictable rise and fall of sea level caused by the gravitational pull of the moon and the sun.
In contrast, a tsunami is a series of ocean waves caused by a large displacement of water, such as an earthquake, volcanic eruption, or underwater landslide. Tsunamis can travel at high speeds across entire ocean basins and can cause devastating damage when they reach the shore. A tsunami is a series of ocean waves that are generated by a disturbance, such as an earthquake, volcanic eruption, or landslide, that displaces a large volume of water. When this occurs, the waves can travel across entire ocean basins, reaching speeds of up to 500 miles per hour (800 km/h) in the deep ocean.
While the waves may be barely noticeable in the open ocean, as they approach shore, they can grow in height, and cause significant damage to coastal areas. The destructive power of a tsunami comes from its sheer volume of water, which can inundate low-lying areas, sweep away buildings, and cause severe flooding and erosion.
Tsunamis can occur anywhere in the world but are most common in the Pacific Ocean, where they are often referred to as "Pacific Tsunamis." The 2004 Indian Ocean Tsunami and the 2011 Tohoku earthquake and tsunami in Japan are among the most devastating tsunamis in recent history, causing widespread destruction and loss of life.
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we can tell our sun is smaller in size than Polaris, because
Our Sun is smaller in size than Polaris due to various factors, such as their respective classifications, luminosity, and distance.
Our Sun is a G-type main-sequence star (G2V) with a diameter of approximately 1.4 million kilometers. It is characterized by its moderate temperature, which makes it appear yellow in color. On the other hand, Polaris is a yellow-white supergiant star classified as F7Ib. Supergiant stars are known for their massive size, greater than that of main-sequence stars.
Luminosity also plays a significant role in comparing the sizes of these two stars. Luminosity refers to the amount of energy a star emits per unit of time. Polaris is approximately 1,000 times more luminous than our Sun, meaning it emits much more energy, which indicates a larger size.
Lastly, distance can help us determine the size difference between the Sun and Polaris. Our Sun is much closer to Earth at approximately 93 million miles (150 million kilometers) away. Polaris, on the other hand, is located around 323 light-years away from us. Despite its greater distance, Polaris is still visible to the eye, suggesting its larger size in comparison to our Sun.
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Large rifts or valleys, which can often have very large ______ faults, are created by tensional forces.
Large rifts or valleys are created by tensional forces that pull apart the Earth's crust. This creates a stretching or extensional stress that leads to the development of faults.
Faults are fractures in the Earth's crust where the two sides of the crack have moved relative to each other. In the case of rifts or valleys, the faults are usually large and can extend for long distances. As tensional forces continue to act on the area, the faults may become more pronounced and the rift or valley may widen. This process is known as rifting and is often associated with the formation of new ocean basins.
The tensional forces that drive rifting can be caused by a variety of factors, including the movement of tectonic plates, the buildup of pressure from magma below the surface, or the weight of sedimentary rocks that has accumulated over time.
Overall, large rifts or valleys with large faults are a result of tensional forces acting on the Earth's crust over long periods of time.
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Explain how each of the following contributed to the Anglicization (becoming more like the British) of the colonies
The factors like "Education, Religion, Politics, Language and Customs" contributed to the Anglicization of the colonies and helped to create a sense of unity with Britain that would eventually lead to the American Revolution.
There were several factors that contributed to the Anglicization of the colonies:
1. Education: The British brought with them their educational system, which was based on the English language and British culture. The colonies adopted this system and many of their educational institutions were modeled after those in England.
2. Religion: The Church of England was the official religion of the colonies and its influence was felt throughout society. Many colonists attended Anglican churches and adopted the customs and beliefs of the Church.
3. Politics: The British system of government was adopted by the colonies, including a bicameral legislature and the idea of the rule of law. Colonists were also taught to respect the monarchy and the British political system.
4. Language: English became the dominant language of the colonies and was used in official documents, education, and commerce. Many colonists also adopted British accents and idioms.
5. Customs: British customs and traditions, such as tea drinking and social etiquette, were adopted by the colonies. Colonists also began to dress in British fashion and to emulate British manners and behavior.
Overall, these factors contributed to the Anglicization of the colonies and helped to create a sense of unity with Britain that would eventually lead to the American Revolution.
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which of these are two different measures of the same stellar property? a. luminosity and temperature b. luminosity and apparent magnitude c. luminosity and absolute magnitude d. apparent and absolute magnitude
The two different measures of the same stellar property are c. luminosity and absolute magnitude. Both of these measurements describe the total amount of energy emitted by a star.
Luminosity is the energy emitted per unit of time, while absolute magnitude is a logarithmic scale that measures the brightness of a star as if it were 10 parsecs away from Earth. C. Luminosity and absolute magnitude are two different measures of the same stellar property. Luminosity is a measure of the total amount of energy that a star emits per unit time, usually expressed in units of watts or solar luminosities.
Absolute magnitude, on the other hand, is a measure of the intrinsic brightness of a star, defined as the apparent magnitude the star would have if it were located at a distance of 10 parsecs (32.6 light years) from Earth. Luminosity and absolute magnitude are related because they both measure the intrinsic brightness of a star. By knowing either one of these measurements, we can determine the other using mathematical relationships.
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_____ Describes information of One and One secondary mag was from a single parent magma
When a secondary mag is formed, it means that a new batch of magma has been created from an already existing magma. This parent magma provides the necessary materials and conditions for the secondary mag to form.
In the case of One and One secondary mag, it means that both secondary magmas originated from a single parent magma. The process of forming secondary magmas can occur due to a variety of reasons, such as changes in pressure, temperature, and composition of the parent magma. As the magma undergoes these changes, it can result in the separation of different materials and the formation of new magma. It is important to study secondary magmas as they can provide insights into the evolution of a magma system. By understanding the relationship between parent magma and secondary magmas, geologists can gain a better understanding of the conditions that led to their formation and the processes that occurred during their evolution. In summary, One and One secondary mag describes the formation of two magmas from a single parent magma. This process is important to study in order to better understand the evolution of magma systems and the conditions that led to the formation of secondary magmas.
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Mountains do not get infinitely high or exist forever because
A. their composition (continental crust) causes them to remain buoyant.
B. they experience orogenic collapse.
C. they are eventually subducted in the plate tectonics cycle.
D. the Earth's geothermal gradient is too low.
Mountains do not get infinitely high or exist forever because of their composition causes thru to remain buoyant (option a).
One of the reasons is that they experience orogenic collapse, which is the process of a mountain range slowly losing elevation over time due to erosion and other factors. The composition of the mountain also plays a role. Mountains are typically made of continental crust, which is less dense than the underlying mantle. This buoyancy causes them to rise up, but eventually, the weight of the mountain itself causes it to sink back down.
Another reason is that mountains are eventually subducted in the plate tectonics cycle. As the tectonic plates move and collide, mountains are formed, but eventually, they will be carried along with the plate and forced beneath the surface. This process, known as subduction, can lead to the complete destruction of the mountain range.
The Earth's geothermal gradient is also a factor in the life span of mountains. The geothermal gradient is the rate at which the Earth's temperature increases with depth. If the gradient is too low, then the rock beneath the mountain will not be hot enough to melt, causing the mountain to remain stable. However, if the gradient is too high, then the rock will melt and the mountain will be destroyed.
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Two planets are orbiting a star. Planet A is 2 times further away from the star than Planet B is. Therefore, _____________.
Question 1 options:
Planet A receives 2 times more radiation than Planet B
Planet A receives 2 times less radiation than Planet B
Planet A receives 4 times more radiation than Planet B
Planet A receives 4 times less radiation than Planet B
Two planets are orbiting a star. Planet A is 2 times further away from the star than Planet B is. Therefore, D. Planet A receives 4 times less radiation than Planet B
Why is radiation received this way ?Inversely related to the square of their distance, a planet receives reduced radiation from its star as it is set further away.
Thus, Planet A which is twice as distant as Planet B shall only obtain one-quarter, or four times less, of the amount of radiation reaching the latter. Said differently, Planet A shall acquire four occasions lesser radiation compared to Planet B.
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