Home Biology Biodiversity and Conservation General Amazon rain forest, called the ‘Lungs of the…
Biology Biodiversity and Conservation General Single Correct MCQ
Published on: August 21, 2026

Amazon rain forest, called the ‘Lungs of the Planet’, contribute following percentage of oxygen by photosynthesis, to earth atmosphere.

A
20%
B
35%
C
42%
D
50%

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The correct answer is:
A

The Amazon Rainforest is called the “Lungs of the Planet” because it produces a large amount of oxygen through photosynthesis.

It contributes about 20% of the Earth’s oxygen to the atmosphere.

It also plays a crucial role in carbon dioxide absorption and climate regulation.

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