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Environmental Science : Class 9 Science MCQ Practice Questions & Answers (Tamil) - ObjectiveMcq

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Environmental Science in Class 9 Science : Practice MCQ Questions & Answers with Explanations

1 practice sets · Page 1 of 1

Class 9 ScienceMediumScienceEnvironmental ScienceGreenhouse Effect

1.

Which gas is responsible for the greenhouse effect?

A

Hydrogen

B

Carbon dioxide

C

Oxygen

D

Nitrogen

View Answer

Correct Answer: B — Carbon dioxide

Explanation:

Carbon dioxide traps heat in the atmosphere and contributes to the greenhouse effect.