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Evolution

Q what is the...

Question

Q what is the source through which CO₂comes to the earth atmosphere?
Q what are the sources through which CO₂gets out of the earths atmosphere?

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Solution

Processes by which carbon dioxide enters the Earth's atmosphere:
Respiration of plants and animals, volcanic eruptions, burning of fossil fuels, decomposition of dead parts and organisms, heating up of oceans

Processes by which carbon dioxide leaves the atmosphere:
Photosynthesis, weathering of rocks, dissolution in water

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Similar questions

Q. Identify the wrong statement/ statement from the following.
(1)

{C O}_{2}

is released into the atmosphere through volcanic activity
(2)

{C O}_{2}

is released into the atmosphere through process of photosynthesis
(3)

{C O}_{2}

is released into the atmosphere through process of respiration
(4)

{C O}_{2}

is released into the atmosphere through process of forest fires

Q. Which of the following is the source of

C O_{2}

in the atmosphere ?
A) Combustion

B)Fermentation
C) Respiratory processes of animal life

Q. A process through which

C O_{2}

enters atmosphere from living organisms is

Q. Assertion :The atmospheric concentration of

C O_{2}

at which photosynthesis just compensates for respiration is referred to as

C O_{2}

compensation point. Reason: The

C O_{2}

compensation point is reached when the amount of

C O_{2}

uptake is less than that generated through respiration, because the level of

C O_{2}

in the atmosphere is more than that required for achieving

C O_{2}

compensation point.

Q. Assertion :Some sunlight that hits the earth is reflected. Reason:

C O_{2}

and other gases in the atmosphere trap heat, keeping the earth warm.

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