Paper 1 · People, Development and Environment
Assertion (A): The heat is trapped close to the Earth's surface mostly by naturally occurring gases such as carbon dioxide, methane, nitrous oxide and water vapour, and by synthetic fluorinated gases. Reason (R): These gases make a sort of blanket around the Earth, keeping the planet warmer than it would be without them. Choose the correct answer.
ABoth (A) and (R) are true and (R) is the correct explanation of (A) ✓ Correct
BBoth (A) and (R) are true but (R) is not the correct explanation of (A)
C(A) is true, but (R) is false
D(A) is false, but (R) is true
Correct answer: (A) Both (A) and (R) are true and (R) is the correct explanation of (A) — Both (A) and (R) are true, and (R) correctly explains (A), so that is the answer.
Explanation
★Both (A) and (R) are true, and (R) correctly explains (A), so that is the answer.
★The assertion says greenhouse gases trap heat near the Earth's surface.
★The reason explains that these gases act like a blanket around the planet.
★It is this blanket effect that traps the heat described in the assertion.
★So the reason explains why the heat is trapped.
★So both are true and (R) is the correct explanation of (A).
Want more like this? Create a free account to practise a full test, track your progress, and get spaced-repetition review.
Shared by Mcqkart · via Mcqkart.in