Ques.2. Discuss the economic importance of Algae as primary Source of food and Energy.
Ans. The most important use of algae is that they are the “primary producers of organic matter in aquatic environment because of their photosynthetic activity.” (Bold and Wynne, 1978). Animal life in aquatic environment mainly depends on algae because they form the primary source of energy and food for them. In aquatic ecosystems, the algae constitute the main part of the food chain. Because of their photosynthetic activity they continuously oxygenate (give out oxygen) their surrounding aquatic environment, which is beneficial directly to the other aquatic organisms.