हिंदी

Assertion (A): Deforestation is one main factor contributing to global warming. Reason (R): Besides CO2, two other gases – methane and CFCs are also included under greenhouse gases.

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प्रश्न

Assertion (A): Deforestation is one main factor contributing to global warming.

Reason (R): Besides CO2, two other gases – methane and CFCs are also included under greenhouse gases.

विकल्प

  • Both assertion (A) and reason (R) are true, and reason is the correct explanation of assertion.

  • Both assertion (A) and reason (R) are true, but reason is not the correct explanation of assertion.

  • Assertion (A) is true but reason (R) is false.

  • Both assertion (A) and reason (R) are false.

MCQ
अभिकथन और तर्क
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उत्तर

Both assertion (A) and reason (R) are true, but reason is not the correct explanation of assertion.

Explanation:

Deforestation contributes to global warming by releasing stored carbon and reducing carbon dioxide uptake by photosynthesis. Methane and CFCs are greenhouse gases, but that fact does not explain the effect of deforestation.

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अध्याय 20: Environmental Issues - EXERCISES [पृष्ठ ११५५]

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सरिता अग्रवाल Biology [English] Class 12 ISC
अध्याय 20 Environmental Issues
EXERCISES | Q VI. 7. | पृष्ठ ११५५
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