Question

Algae have great economic importance to man because

• A. They can be grown in tanks.
• B. They help to restore the fertility of the soil.
• C. Of their high protein content, some algae may be used as future food.
• D. Both B and C.

Answer 1

Answer: (D)

Both B and C.

Algae have great economic importance to man as it is a rich source of protein and some algae may be used as future food apart from this, it is also true that algae enriches the soil and can be a good source to make the soil fertile. Algae are being commercially used by man in many ways. Red algae is used to produce edible gelatin. Thus, the correct answer is option D.