ESS
Grade-9
Easy
Question
Assertion: CO2 is a major greenhouse gas.
Reason: Increase in CO2 level leads to decrease in Earth’s temperature.
- If both assertion and reason are true and reason is the correct explanation of assertion.
- Both assertion and reason are true, but reason is not the correct explanation of assertion.
- Assertion is true, but reason is false.
- Assertion is false, but reason is true.
Hint:
Carbon dioxide emission increases greenhouse effect thereby increasing temperature of the Earth
The correct answer is: Assertion is true, but reason is false.
Carbon dioxide is a major greenhouse gas that plays a role in trapping the heat radiated by Earth and doesn't allow it to escape into the space. Therefore it increases the temperature of the Earth
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Reason: Increase in CO2 level leads to decrease in Earth’s temperature.
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