Question

Fill in the blanks:
1. Complex network of food chain is called ...................... .
2. The impurities present in waste water are called ...................... .
3. World Water Day is celebrated every year on ...................... .
4. Producers are also called ...................... .
5. Soaps and detergents are ...................... wastes.

Answer 1

1. Complex network of food chain is called food web.
2. The impurities present in waste water are called contaminants.
3. World Water Day is celebrated every year on 22^nd March.
4. Producers are also called autotrophs.
5. Soaps and detergents are domestic wastes.