Q. Assertion (A) : In the deep ocean, primary production occurs near hydrothermal vents. Reason (R) : Over there, microbes produce food through chemosynthesis which forms the basis for a food-chain. Code

• A. Both (A) and (R) are individually true and (R) is the correct explanation of (A)
• B. Both (A) and (R) are individually 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: B