Question

Which one of the following is the major reservoir of carbon?

• A. Ocean
• B. Detritus in soil
• C. Plants and animals
• D. Atmosphere

Hint:

The ocean is the largest carbon reservoir in the Earth's carbon cycle.

Answer 1

The Correct Option is A

Step 1: Understanding the carbon cycle.
The carbon cycle involves the movement of carbon through various reservoirs. The largest reservoir of carbon is the ocean, which stores carbon in dissolved forms and marine organisms.
Step 2: Analyzing the options.
(A) Ocean: Correct — The ocean holds the largest amount of carbon, primarily in the form of dissolved CO2.
(B) Detritus in soil: Incorrect — While the soil holds some carbon, it is not the largest reservoir.
(C) Plants and animals: Incorrect — Plants and animals hold carbon, but they are smaller reservoirs compared to the ocean.
(D) Atmosphere: Incorrect — The atmosphere holds a smaller amount of carbon compared to the ocean.
Step 3: Conclusion.
The correct answer is (A) Ocean, as it is the largest reservoir of carbon.