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Karnataka Board PUCPUC Science Class 11

Assertion (A): Carbon dioxide is one of the important greenhouse gases. Reason (R): It is largely produced by respiratory function of animals and plants. - Chemistry

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Question

Assertion (A): Carbon dioxide is one of the important greenhouse gases.

Reason (R): It is largely produced by respiratory function of animals and plants.

Options

  • Both A and R are correct and R is the correct explanation of A.

  • Both A and R are correct but R is not the correct explanation of A.

  • Both A and R are not correct.

  • A is not correct but R is correct.

MCQ
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Solution

Both A and R are correct but R is not the correct explanation of A.

Explanation:

Since the increased amount of carbon dioxide in the air is the main cause for global warming. Excess of carbon dioxide gets released into the atmosphere and is removed by green plants which maintains an appropriate level of carbon dioxide into the atmosphere. 

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Atmospheric Pollution - Tropospheric Pollution - Gaseous Air Pollutants
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Chapter 14: Environmental Chemistry - Multiple Choice Questions (Type - I) [Page 182]

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NCERT Exemplar Chemistry [English] Class 11
Chapter 14 Environmental Chemistry
Multiple Choice Questions (Type - I) | Q 42 | Page 182

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