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Consider the following statements: 1. Some microorganisms can grow in environments with temperature above the boiling point of water. 2. Some microorganisms can grow in environments with temperature below the freezing point of water. 3. Some microorganisms can grow in a highly acidic environment with a pH below 3. How many of the above statements are correct?

UPSC · 2023 · Environment & Science & Tech
Question:
Consider the following statements: 1. Some microorganisms can grow in environments with temperature above the boiling point of water. 2. Some microorganisms can grow in environments with temperature below the freezing point of water. 3. Some microorganisms can grow in a highly acidic environment with a pH below 3. How many of the above statements are correct?

Options

Only one
Only two
All three
None
Answer: All three

Explanation:
Extremophiles such as thermophiles, psychrophiles, and acidophiles can survive in extreme conditions including boiling temperatures, sub-zero temperatures, and highly acidic environments.

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