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Which of the following is the largest sink for carbon dioxide gas?

(a) Forests

(b) Oceans

(c) Ice sheets

(d) Grasslands

The question was posed to me in a job interview.

Asked question is from Greenhouse Gases topic in section Atmosphere & Greenhouse Gases of Environmental Engineering

1 Answer

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Best answer
The correct choice is (b) Oceans

To explain I would say: Carbon dioxide dissolves in water as not only gas but also in the bicarbonates form. Therefore, ocean is one of the major sinks for carbon dioxide.

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