Which of the following is responsible for largest amount of oxygen on earth?

A. Peat bogs
B. Algae
C. Trees
D. None of these

Check Answer

The correct answer is B) Algae.

Algae and other aquatic plants are responsible for the largest amount of oxygen on Earth. They produce approximately 70% of the oxygen in Earth’s atmosphere through photosynthesis. Trees and other terrestrial plants also produce oxygen, but they account for a smaller share of the total amount. Peat bogs do not produce significant amounts of oxygen, as they are wetlands that contain decomposing organic matter and have little plant growth.
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