In your biology class, there was a discussion about climate change. You learned that human activities are changing the composition of Earth's atmosphere, and that levels of greenhouse gases like carbon dioxide (CO2) have been increasing sincepre-industrial times. Your teacher stated that the atmospheric buildup of CO, and other greenhouse gases is largely the result of human activities such as the burning of fossil fuels. One student in your class disagreed. He said that the increase in human populations worldwide is causing the higher level of CO,. His argument is that as people exhale, they release CO, from cellular respiration; more people, more COy. Your class erupted in discussion, and your teacher has asked that you choose a side and research the argument. Working in small groups, create short documentary (3-5 minutes) about how respiration and fossil fuel burning are similar processes. Use data and evidence from peer-reviewed sources to make a claim regarding whether or not one (or both) of these processes can be the root cause of climate change.

Answers

Answer 1

Answer:

Below

Explanation:

While your classmate is correct in that respiration does cause the release of CO2, it's inaccurate to say that it has contributed to climate change, and it's especially inaccurate to say it has contributed to the same extend as the use of fossil fuels.

Let's break it down shall we:

When a human breathes, they release 35,000 to 50,000 ppm (parts per million) of CO2 with every exhale. On average, we breathe out 20,000 times a day. Multiply that by the amount of people on Earth, about 7.8 billion, you get 1.716x10^14 breaths a day. Therefore, you have that times 50,000 ppm of CO2 released. That sure is a lot, however, let's look at how much carbon dioxide is released from coal alone in a day. In general, the world consumes over 8.5 million tons of coal a year, and in the US alone 14,000 tons are burnt in one day. When you burn one pound of coal, around 2 pounds of CO2 is released, as the carbon of the coal mixes with the oxygen requiring it to burn. Therefore, 28,000 tons of CO2 is put into the environment from coal alone (not even including all of the other fossil fuels like natural gas and oil), showing how extensive the CO2 burning of fossil fuels is.

Additionally, I want to address the point of increased human population leading to more CO2 from respiration. Consider this, with more people, there is more need for agriculture. Aka, we need to grow more plants in order to sustain our growing population. Plants grow using photosynthesis which needs Carbon Dioxide to begin. Therefore, as our population grows, the amount of CO2 taken from our atmosphere in order to sustain our population actually shows that growing population doesn't necessarily relate to more CO2 from exhalation overall.


Related Questions

Give an example of a scientific theory.

Answers

Answer:

Example of scientific theory is given below

Dalton's atomic theory, Einstein's theory of gravity, and the kinetic theory of matter.

Explanation:

PLEASE MARK ME BRAINLIEST IF MY ANSWER IS CORRECT PLEASE

Answer:

Einstein’s theory explained a famous observation that Newtonian gravity could not: a subtlety in the orbit of the planet Mercury. And his equations implied further slight deviations from Newtonian calculations. Over the last century, general relativity’s predictions have been repeatedly verified by modern precision measurements. To physicists today, general relativity and gravity are essentially synonyms.

Explain why Neil Shubin thinks Tiktaalik says something about our own bodies? (in other words – why the Inner Fish title for the book?)

Answers

Answer:

Neil Shubin bases his argument that the anatomy of Tiktaalik is relevant to that of humans by discussing specific features of the anatomy of Tiktaalik that vary from typical fish anatomy and correspond to features of the human body. For example, he points out that Tiktaalik has a neck that is able to bend independently of the rest of the body, unlike fish, and like all terrestrial vertebrates, including humans. Therefore, the evolutionary history of humans can be traced to an organism similar to Tiktaalik, resulting in the concept of the "inner fish."

Explanation:

How do muscles work together to created movement

Answers

Answer

Basically they contract and then relax in different places back and forth.

Explanation:

When you move your arm for example, parts of that muscle are stretched while other parts become more relaxed to allow for the tension on certain parts. Basically when one part is stretched, the other part is relaxed, so they're always working together.

The gray bar is an endangered bat found in Georgia.

A. Habitat
B. Biosphere
C. Species
D. Community
E. Population
F. Niche

Answers

Answer:

C. Species

Explanation:

There are currently three bat species that occur in Georgia that receive federal protections under the Endangered Species Act: the federally endangered Indiana bat (Myotis sodalis) and gray bat (Myotis grisescens), and the federally threatened northern long-eared bat (Myotis septentrionalis).11 Apr 2022

which structures contain endolymph

Answers

The membranous labyrinth

Which phase of cell division is shown?
O prophase
O anaphase
telophase
O metaphase

Answers

Answer: I don't have the picture you're looking at, but I can try to give you some clues to help you out.

Prophase is where the chromatids enter the cell and the chromosomes attach to the spindle fibers in the cell.

Metaphase: all of the chromosomes line up in the center of the cell (I use this trick I made up to remember this one: The chromosome will have Met the teacher's expectations when they line up in the center of the cell.)

Telophase: is where the sister chromatids go to opposite sides of the cell right before they split

Anaphase is when they finally split and are now classified as two different cells. One parent cell and one daughter cell.

I hope this helps you to solve your problem!

- AnaMae10

ste Styles Editing А у А - Аа Aa A A ΑΑ' 1 H - 21 Paragraph board 19 Font 1 Styles 67 2 4 5 I Question 6: (1.5 marks) Ramond Company has hired you to prepare financial statements for the year ending 12/31. On your first day of work, your assistant comes to you with several items that could be classified as expenses or could be classified as assets. Based on your knowledge of accounting so far, determine whether the following items should be recorded as an expense or an asset. +On 12/31, Ramond paid $14,000 to rent office space for the next twelve months, +On 10/1, Ramond paid $40,000 for insurance that covered the company's property for the last quarter of the year. +On 6/1, Ramond purchased $27,000 in supplies, all of which were used by 12/31. + On 12/31, Ramond purchased $5,000 worth of supplies for the coming month.​

Answers

The fact that Ramond paid $14,000 to rent office space for the next twelve months and paid $40,000 for insurance that covered the company's property are expenses.

What is an asset?

It should be noted that an asset simply means an item that has economic benefit to a company.

In this case, Ramond paid $14,000 to rent office space for the next twelve months and paid $40,000 for insurance that covered the company's property are expenses.

The assets are that Ramond purchased $27,000 in supplies, all of which were used by 12/31 and he also purchased $5,000 worth of supplies for the coming month. They're assets because they're beneficial to him as they can be used to provide further value.

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Which type of pollution includes CFC'S and smog?

Answers


Which type of pollution includes a CFC‘s and smog? Air pollution

Answer: B

Explanation: trust me

What do you do if a tornado is predicted?

Answers

Answer: You will need to prepare just incase it happens. Meaning buy grocceries, shelter and comfort items. And make sure to stay indoors at al times and away from windows or anything dangerous.

Hope this helps :) If so brainliest would mean alot thanks!

Explanation:

Name some factors that will affect the weather

Answers

Answer:

There are a lot of factors.

Explanation:

1. The equators --> affect the climate

2. the strength of the wind/ direction of wind: onshore wind/ offshore wind

3. the humidity

4. the latitude

Why is it so important to monitor your
temperature when you get a fever?
A. to prevent high blood pressure
B. to prevent too much energy usage
C. to prevent protein denaturation
D. to prevent nausea and vomiting

Answers

It is important to monitor body temperature during fever to prevent high blood pressure.

Why does a fever occur?

The increase in the temperature of our body as a response to some kind of infection is called fever.

When our body is infected with some kind of pathogen, it cannot defend itself against it at its normal temperature. Therefore, the temperature of the body is elevated to a level higher than normal for activation of the immune cells.

High body temperature also results in increased blood flow so that the immune cells travel to the site of infection at a faster rate.

Therefore it's important to regularly monitor body temperature during fever to prevent high blood pressure.

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what is the difference between academic discourse from academic writing

Answers

Answer:

academic writing is a piece of writing which focuses on a specific topic or subject while academic discourse encompasses the idea of dialogue language used and a format that facilitates high level of communication

what are the five main climate regions?

Answers

Answer:

The Five Main Climate Regions Are:-

tropical

dry

mild

continental

polar.

Answer:

The five main climate regions

tropical

dry

mild

continental

polar

what is primary productivity

Answers

Primary productivity is the process where inorganic substance are synthesized by organisms to produce a simple organic materials.

Example: Diatoms,Dinoflagsllates and coccolithophores etc

Help!
Populations of which taxa are likely to benefit if the numbers of voles and mice increased?

Answers

The population of the secondary and tertiary consumer will increase if the numbers of voles and mice increased.

What is Population?

This refers to the number of people or inhabitants occupying an area. The increase in the primary consumers in the ecosystem means that there will also be a corresponding increase in secondary and tertiary consumer.

This is due to the availability of food for them which will increase their survival chances and reproductive rates.

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Pls I really need help

Answers

Answer:

just doing ths for points

Explanation:

have a nice day bye

2. A cell with 100 chromosomes goes through meiosis. At the end, there are ____ daughter cells, each with ______ chromosomes.

Answers

During the process of meiosis, a cell with 100 chromosomes will produce 4 daughter cells, each with 50 chromosomes each the end.

What is Meiosis?

Meiosis is a process in cell division and reproduction in which haploid cells are produced from diploid cells.

During meiosis, four daughter cells are produced from a single parent cell with each daughter cell having half the chromosome number of the patent cell.

Therefore, when a cell with 100 chromosomes goes through meiosis, at the end, there are will be 4 daughter cells, each with 50 chromosomes.

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discuss the evidence supporting the benefits of stem cell research

Answers

The benefits of stem cell research are associated with the development of specialized cell lines.

What are stem cells?

Stem cells are pluripotent cells that can be used to develop virtually any type of specialized cellular type.

These cells (stem cells) have the ability to self-renew and thus generate germinal layers present in an embryo.

Stem cells are used in research to investigate how certain gene expression patterns determine the formation of certain cellular types.

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Which statement regarding the digestive system is true?
A.The large intestine stores waste ready for elimination.
B.Viruses in the colon help produce valuable vitamins.
C.The small intestine is responsible for water reabsorption.
D.The large intestine acts as a trash compactor.
E.The colon is the last portion of the large intestine

Answers

Answer:

C poh

Explanation:

sana poh makatolong poh

4) A hypothetical bacterium swims among human intestinal contents until it finds a
suitable location on the intestinal lining. It adheres to the intestinal lining using a feature
that also protects it from phagocytes, bacteriophages, and dehydration. Fecal matter from
a human in whose intestine this bacterium lives can spread the bacterium, even after
being mixed with water and boiled. The bacterium is not susceptible to the penicillin
family of antibiotics. It contains no plasmids and relatively little peptidoglycan. The cell
also lacks F factors and F plasmids. Which of the following statements about the bacteria
is most probably accurate?
A) The bacterium cannot donate DNA through conjugation with another cell.
B) The bacterium cannot take up DNA from its external environment.
C) The bacterium cannot form an endospore.
D) The bacterium cannot reproduce.

Answers

The answer is D- the bacterium cannot reproduce
The bacterium cannot reproduce if it’s just growth and not multiplying and going all over the body and that type is probably antibody resistance to test bacterium to see what type of antibody would be effective for that in particular issue

two functions of tRNA

Answers

Answer:

trna serves as the physical link between the mRNA and the amino acid sequence of proteins.

Explanation:

1.It plays an important role in protein synthesis.

2.It acts as an adapter molecule for linking amino acids to its specific codon present in mRNA.

:-befrank

Four general rules for cross contant prevention are?​

Answers

Foods in plastic bags
separate when going to check out
separate from meats
wash fruits and meats

Which statement describes the first step in soil formation?
O A. Humus forms topsoil.
O B. Bedrock becomes weathered.
C. Decaying plants add nutrients
O D. Sediment is carried by water.

Answers

Answer:

I think your answer is B: Bedrock becomes weathered

I will give Brainliest!

An American man's risk of developing prostate cancer in his lifetime is about 16 percent. What is another way to say this?

Answers

Answer: Choose whichever is paraphrased better.

Explanation:

In a male's life, he has about a 16 percent chance of developing prostate cancer in his life.In America, a man has approximately a 16 percent chance of receiving prostate cancer in his lifetime.

Hope this helps! :)

distinguish between male and female cones of pinus and cycas​

Answers

Answer:

You can observe a difference between Cycas and Pinus in their cones too. The male cone of cycads is large and terminal, bearing numerous microsporophylls while the male cone of pines is small and clustered. Female Cone

Explanation:

5. Which of the four products that raw cotton is separated into is used in livestock
feed?
A. Cottonseed
B. Cotton motes
C. Cotton burrs
D. Both A & B

Answers

Answer:

A. Cottonseed

Explanation:

Feeding whole cottonseed to beef cattle can be an economical and effective way to supplement energy, fat, and protein in their diets. As cotton is ginned, lint, debris, and cottonseed are separated.

Dead bodies become rigid shortly after death because

Question 5 options:

there is not enough ATP


they do not have enough calcium


the actin is denatured


they have too much ATP

Answers

Which method can the health care aide use to prevent falls among the elderly?

On the feed lot, what is the base of 70% to 90% of the feed for the beef animal?

Answers

A. grain I hope this helps

What happens if food items with excessive moisture are placed directly into hot shortening?

Answers

The excess moisture ( water) in the food items boils up immediately and busts both shortening and water around.

Reaction between hot shortening and water

Shortening are known to be fats at room temperature and are usually used in the baking of cakes and bread.

When placed in the temperature that is high, it melts to become liquid.

When you pour a food item that contains excess moisture on hot shortening, the water comes in contact with a higher temperature than the shortening's boiling temperature, so the water starts boiling immediately, and busts both shortening and water around.

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What causes a heart attack?
A. When the arteries increase
B. When LDL metabolizes cholesterol
C. When the heart is starved of oxygen
D. When HDL returns cholesterol to the heart

Answers

The answer to this is A
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