Maximum contribution of oxygen is from (a) phytoplankton (b)grasslands) (c)herbs and shrubs (d) dense forests
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The correct option is (a) Phytoplankton.
Phytoplankton account for almost half of the photosynthetic activity on Earth. Thus, are responsible for maximum (about 80%) of the oxygen present on the earth while the rest is because of the other plants.
Phytoplankton account for almost half of the photosynthetic activity on Earth. Thus, are responsible for maximum (about 80%) of the oxygen present on the earth while the rest is because of the other plants.
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