Which of the following are sinks of atmospheric carbon dioxide (CO2)?

1.Wetlands

2.Oceans

3.Soil

4.Elephants

A1 & 2 only

B3 & 4 only

C1, 2 & 3 only

D1, 2, 3 & 4 ✓ Correct

Correct answer: (D) 1, 2, 3 & 4

Explanation

Wetlands, oceans, soil and even elephants all act as sinks that store atmospheric carbon dioxide.

Wetlands trap large amounts of carbon in their waterlogged, plant-rich soils.

Oceans dissolve and absorb a huge share of atmospheric carbon dioxide.

Soil holds carbon in organic matter and plant roots.

Elephants boost forest carbon storage by shaping vegetation that locks away carbon.

Protecting forests, wetlands and their wildlife helps keep these natural carbon stores intact.

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