Discussion
Which of the following regions is known as the 'carbon sink' of the globe ?
Answer: D
The tropical rainforest is called the carbon sink of the globe, because its large and fast-growing biomass takes in large amounts of carbon dioxide through photosynthesis and stores the carbon in wood and soil. The Amazon and Congo basins are the best examples.
Antarctica is covered by ice and has little vegetation, the savanna has less biomass per hectare, and north-western Europe has temperate vegetation and a lower stock of carbon. So the key is the tropical rainforest.
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