Question

Assertion (A): Algae are the primary producers of many food cycles.

Reason (R): Half of the total carbon dioxide fixation on Earth is carried out by Algae.​

Answer 1

Answer:

Both Assertion and Reason are true but reason is not the correct explanation of assertion.

Explanation:

Algae are of paramount importance as primary producers of energy rich compounds which form the basis of the food cycles of all aquatic animals. Many species of Porphyra, Laminaria and Sargassum are among the 70 species of marine algae used as food.

Algae also perform CO2 fixation on Earth through photosynthesis and increase the level of dissolved oxygen in their immediate environment.

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