the principal gas in the biogas produced in a landfill is

Answers

Answer 1

Answer:

Biogas is composed mostly of methane (CH4), the same compound in natural gas, and carbon dioxide (CO2).

Explanation:


Related Questions

The ____ of the material caused ____________ of the layers beneath.
PLEASE HELP ASAP! Best answer will get brainliest! (Earth Science)

Answers

Answer:

The layers of Earth provide geologists and geophysicists clues to how Earth formed, the layers that make up other planetary bodies, the source of Earth’s resources, and much more. Modern advances have allowed scientists to study what lies beneath our feet in more detail than ever before and yet there still remains significant gaps in our understanding.

Explanation:

Hope it's help

1
The observation by Darwin that finches of different species on the Galápagos
Islands have many similar physical characteristics supports the conclusion that
these finches *
(1 Point)

A.all eat the same type of food.

B.originated from a common ancestor.

C.have the ability to interbreed.

D. acquired traits through use and disuse.

No links or bots please and thank you

Answers

Answer:

D

Explanation:

I think it was to do with beak lengths

Which statement best describes the use of a catalyst in a fuel cell? It reduces waste. It lowers energy requirements. It reduces toxic exhaust. It increases reaction rates.

Answers

The statement that best describes the use of a catalyst in a fuel cell is : ( D ) It increases reaction rate

A catalyst in a fuel cell speeds up/facilitates the rate of reaction of oxygen and hydrogen especially at the oxygen electrode of the fuel cell.

Generally catalyst is any substance that increases the rate of a chemical reaction without been used up in the process, while lowering the activation energy required to kickoff the reaction.

Hence we can conclude that the statement that best describes the use of a catalyst is that it increases the reaction rate

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Answer:

The answer is D

Explanation:

EDGE2022

Why do you have to determine the total magnification when observing a specimen under the compound microscope?

Answers

Answer:

To clearly see specimens under the microscope, and to be able to see two separate objects that are close together.

Explanation:

A microscope is a tool that makes an object look bigger so that the person who is looking at it can see it. It's important to use a microscope because cells are usually too small to see with the naked eye. In addition to magnification, microscopes also have resolution, which is the ability to see two objects that are close together as separate. A microscope needs both magnification and resolution to be able to clearly see specimens under the microscope. When the light microscope bends light at the specimen, it gives the viewer a clear picture of the specimen. A series of lenses do this.

Which of the following statements is true about the role of water in cellular respiration?

Answers

Answer:

The correct answer is " It is one of the ending compounds."

Have a good day!

Explanation:

In aerobic cellular respiration oxygen binds with a hydrogen atom to form H2O and mitochondria making oxygen the final electron acceptor and H2O the final compound formed

A student claims that some animals form groups to increase their chance of surviving.
Which piece of information does the student need to support their claim?
O A. the types of animals that live in groups
B. survival rates of animals alone and animals that live in groups
O c. predictions about which animals will benefit from living in groups
D. behavior differences between animals that live alone and animals that live in groups

Answers

Answer:

B

Explanation:

It shows the survival rates of animals, that live alone vs the ones that live together. If this piece of data supports his claim then it will strengthen his/her claim.

draw the flow chart showing the sequential order of reproductive stage and fertilization​

Answers

The sequential order of reproductive stage and fertilization starts with the

male and female sex cells being produces through meiosis. The male sex

cell which is the sperm is produced in the testes while the female sex cell

which is the egg is produced in the ovary.

During copulation, the sperm cells are released into the vagina which then

swims through the cervix and uterus to the fallopian tubes where the

fertilization occurs.

There is then movement of the zygote formed from the fertilization to the

uterus where development occurs.

Please refer to the attachment .

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Question
Tell whether x and y show direct variation. Explain your reasoning. If so, find k.

8=xy

Answers

Answer:

PREGUNTA:

INDICA SI XEY MUESTRAN VARIACIÓN DIRECTA .EXPLICA TU RAZONAMIENTO .SI ES ASI, BUSQUE K.

8=XY

Explanation:

ESPERO QUE TE AYUDE

Which of the following cooking methods is tailor-made for preparing a rib eye steak?
-frying
-marinating
-grilling
-roasting

Answers

Grilling is an excellent cooking method for preparing a rib-eye steak. Grilling can eliminate any type of bacterial contamination.

Grilling is a cooking method used to eliminate any type of harmful microorganism (e.g., bacteria).

This method (grilling) involves dry heat which is applied to the surface of the food as radiant energy.

Grilling cooking is a safe mode to eliminate bacterial contamination in meat (barbecue) and vegetables.

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If spindle microtubules fail to bind some kinetochores in meiosis, then most likely: _____________

a. excessive cell divisions will occur resulting an increase in the chromosome number known as polyploidy.
b. the resulting cells will not receive the correct number of chromosomes in the gametes, a condition known as aneuploidy.
c. new microtubules with more effective binding capabilities to kinetochores will be synthesized to compensate for the defect.
d. the defect will be bypassed in order to ensure normal chromosome distribution in the new cells.

Answers

D. If anything fails in the body another part of that system will usually compensate to help distribute the cells without having any abnormalities in the chromosome distribution

Thick hair is dominant to thin hair and brown eyes are
dominant to blue eyes. If a man that is heterozygous
for thick hair and brown eyes and a woman is
heterozygous for thick hair and brown eyes, what is
the chance that they would have a baby with thin hair
and blue eyes?

Answers

Answer

1/4

Explanation:

1/4 properbility

. What is the width of Grandmother’s pelvis, measuring from the pelvic brim? How does her pelvis differ
from Grandfather’s?

Answers

The width of Grandmother’s pelvis, measuring from the pelvic brim is 2cm.

The grandmother has a wider pelvis than the grandfather.

The pelvic brim is found at the edge of the pelvic inlet and measures around

2cm. The pelvis in females are always wider than those found in males. This

is due to the adaptation of the female pelvis to child birth.

The pelvis being wider aids the passage of the foetus from the womb and

eases childbirth. This is the reason why the grandmother has a wider pelvis

than the grandfather.

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what color is monosaccharides Negative and positive test.​

Answers

The "hotter" the final color of the reagent, the higher the concentration of reducing sugar. In general, blue to blue-green or yellow-green is negative, yellowish to bright yellow is a moderate positive, and bright orange is a very strong positive.

What would be the phenotype of a frog if yellow toes is dominant and the frogs genotype was Yy?
Yellow
Or
Not yellow

Answers

Yellow because if yellow toes is dominant and you have Yy then it will have yellow toes

What organelle is instrumental in holding the instructions to make proteins and controlling most of the cell

functions?


O nucleus


O ribosome


O endoplasmic reticulum


O mitochondria

Answers

Answer:

nucleus

Explanation:

whales and dolphins navigating underwater with sound waves is called what?

Answers

Echo location is what dolphins use navigate
They use echolocation

why are there political battles over the budget​

Answers

There are battles because money is getting really hard to come by and there are a lot of people are don’t want to work so political parties are forced to have “battles” because everyone is becoming “money hungry”

which best describes the homes in which peasants lived?

Answers

Answer:With more money, peasants were able to afford better housing and many now lived in wattle and daub houses. Wattle and Daub houses were taller and wider than the simple stick and straw houses. They also offered better protection from the weather.

Explanation:

According to the dichotomus key, organism four is an?

Answers

Answer:

Did you know when you add 1 to 1 it will become 3

A wastewater manager is concerned about the increasing number of intestinal illnesses in his town and the corresponding increased levels of a pathogen
known to cause this illness found in wastewater samples. Which process should be used to track the source of this waterborne illness in his town?
O Epidemiology
O Civil engineering
Hydrologic tracing
O Water management

HELP ME PLZ

Answers

Hmm I would have to say b or d good luck!

Epidemiology studies health-related states and occurrences (not simply diseases) in specific communities.Therefore, option (A) is correct.

What is epidemiology?

The study and analysis of the distribution, patterns, and determinants of health and disease conditions in a given population is what epidemiology is all about. It is one of the most important aspects of public health, and it influences both policy decisions and evidence-based treatment by determining the factors that put people at risk for disease and setting goals for preventative medical care.

Descriptive, analytical, and experimental methods are the three primary approaches utilized in epidemiology. Descriptive epidemiology is the method that is utilized the most to investigate the occurrence of disease, despite the fact that all three can be employed to do so.

Therefore, option (A) is correct.

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brief summary of conservation of forests & wildlife

least 10 page

Answers

With the advent of industrialization, several trees have been cut at an alarming rate for raw materials and various other purposes. This felling of trees can be regulated by selective cutting, clear-cutting and shelterwood cutting.

Forest fires are one of the common causes of loss of forests. Sometimes the forest land is set on fire to make the land available for commercial purposes. Once cleared, there can be no vegetation. Natural forest fires are also responsible for the destruction of huge forest covers. Latest fire fighting techniques should be adopted to conserve the forest. However, forest fires are an important part of the ecosystem and it helps replenish nutrients in the soil from dead and decaying matter.

More trees should be planted to increase the forest cover. Trees should be selected according to the geographical conditions of a particular region and proper care should be taken during the growth of trees.

Prevention of exploitation of forestry and forest products is necessary for the conservation of forest.

The existing forests should be protected from diseases by spraying chemicals, antibiotics or development of pest-resistant strains of trees.

The only system that does not pass through the thalamus on its way to the cerebral cortex is the __________ system. A. Tactile B. Gustatory C. Olfactory D. Visual.

Answers

The cerebral cortex process the information delivered by the thalamus, the information is related to the senses.

The only system that does not pass through the thalamus on its way to the cerebral cortex is the olfactory system.

The systems that pass through the thalamus are:

1. The visual sensation or information passes through the visual occipital cortex. It then delivers the information from the thalamus to the cerebral cortex.

2. The gustatory cortex is the region of the cerebral cortex, which is responsible for the senses of tastes and flavor. It also passes through the thalamus on its way to the cerebral cortex.

3. The tactile system includes the senses of touch. It is the information received through the receptors present on the skin. It also delivers the information to the cerebral cortex via the thalamus.

4. The olfaction system is not involved in the thalamus pathway. The olfactory cortex is present in the temporal lobe, which is not routed through the thalamus.

Thus, the correct answer is Option C.

To know more about the olfactory system, refer to the following link:

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Answer:

C. Olfactory

Explanation:

1. Which is a source of genetic variation?
a. Mutations
b. artificial selection
C. exponential growth
d. genetic bottlenecking

Answers

Answer:

Mutation is a source of genetic variation

Answer:

Mutations

Explanation:

Mutations, the changes in the sequences of genes in DNA, are one source of genetic variation. Another source is gene flow, or the movement of genes between different groups of organisms. Finally, genetic variation can be a result of sexual reproduction, which leads to the creation of new combinations of genes.

What is the Spitzer telescope's primary function?

Answers

Answer:

The Spitzer Space Telescope, formerly known as the Space Infrared Telescope Facility, is an infrared telescope that studies the early universe, young galaxies and forming stars, and is used to detect dust disks around stars, considered an important signpost of planetary formation. Jul 30, 2008

Explanation:

Hopes this helps. Mark as brainlest plz!

PLEASE!!!! Which option identifies the satellite technology best utilized in the following scenario?

A forest management company that is not concerned about time-sensitive problems uses a standardized
internet satellite mapping system to get a rough sense of the status of wooded areas that are normally
inaccessible to all but skilled hikers.

Answers

Answer:

standardized

internet satellite mapping system

Explanation:

it says it right in the senario its standard mapping satalite technology

Which location will cost the most for mining and reclamation at the end of the mining period?

Location 1

Location 2

Location 3

Location 4

Answers

The cost of mining and reclamation for location 4 will cost the most at the end of the mining period.

Location 4 will cost the most for mining and reclamation at the end of the mining period because the cost of mining and reclamation of the location 4 is $7,000 per 65 daysWhile on the other hand, the cost of mining and reclamation of location 1 is $5,000 per 30 days, location 2 is $4,500 per 45 days and location 3 is $3,500 per 120 days.So from this information we can conclude that the cost of mining and reclamation for location 4 will cost the most at the end of the mining period.

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Options are given below:

1. $100,000$10,000$5,000 per day30 days

2. $35,000$6,000$4,500 per day45 days

3. $30,000$7,500$3,500 per day120 days

4. $40,500$8,000$7,000 per day65 days

how does the mitochondria produce energy for the cell

Answers

Mitochondria, using oxygen available within the cell convert chemical energy from food in the cell to energy in a form usable to the host cell.

please help
20 points

77. Select the words from the word box below to complete the statements.

Answers

I can’t see very well I’m sorry but I think it’s sugars and electrons

Create a Punnett square showing a cross between the two F1 parent plants. Their offspring are the F2 generation.

Answers

Here is the answer to the question

In Mendel's experiments with pea plants, the allele for tall pea plants was dominant and the allele for short pea plants was recessive. When did Mendel see short pea plants?

A. when the plants had two dominant alleles for height

B. when the dominant allele for tall plants was not present

C. when the plants had both a dominant allele and a recessive allele

D. when the pea plants produced yellow seeds
PLS HELP!

Answers

Answer:

B

Explanation:

if the reccesive trait is what you want then you cannot have any dominant alleles present

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