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ICSE Class 9 Geography Question 5 of 23

Earth as a Planet — Question 14

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Question

Question 14

Assertion (A): The earth is the only planet known to support life.

Reason (R): The earth is a terrestrial planet like Mercury and Venus.

  1. Both A and R are true and R is the correct explanation of A.
  2. Both A and R are true but R does not explain A.
  3. A is true but R is false.
  4. A is false but R is true.
Answer

Both A and R are true but R does not explain A.

Explanation — Earth supports life mainly because of its liquid water, protective atmosphere, and moderate temperature range. Merely being a terrestrial (rocky) planet, like Mercury and Venus, is not enough, those planets lack the life-supporting conditions that Earth has.