Question

Among the following which is obtained from algae?

• A. Silica
• B. Alginates
• C. Agar-agar
• D. All of the above

Answer 1

The correct option is D All of the above

Silica, alginates and agar-agar, all the three are obtained from algae and are also of commercial importance to man. 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.