Question

Find the correct statement according to the passage.

• A. Though there is no evidence of organics at Yellowknife Bay site yet the possibility of life over there cannot be ruled out.
• B. There can be no life without carbon or organic compound.
• C. Even micro-organisms cannot exist in geological environment where there is complete lack of organics.
• D. The presence of water confirms the existence of life on Mars.

Hint:

When options contain absolutes like "cannot be" or "confirms," they are usually traps in RC-based inference questions.

Answer 1

The Correct Option is A

The passage says: "A lack of organics, however, would not rule out the Yellowknife Bay site as suitable for life." This exactly matches (a). (b) is incorrect, since scientists said carbon need not be present in a habitable geological environment. (c) contradicts the passage (chemoautotrophic microbes can survive on inorganic compounds). (d) is also false, since water only hints at conditions for life, not proof of life. \[ \Rightarrow \boxed{(a)} \]