Question

Statement 1: Microbes can decompose all types of wastes.

Statement 2: Plant and animal wastes that are decomposed by the microbes can be used as manure.

• A. Statement 1 and 2 are true.
• B. Statement 1 and 2 are false.
• C. Only statement 1 is true.
• D. Only statement 2 is true.

Answer 1

The correct option is D Only statement 2 is true.

Microbes cannot decompose all types of waste material. There are certain substances like polythene bags, bottles, platics, etc which might not get decomposed by the microbes at all. Microbes can act on plant and animal wastes. They break down the complex substances in them. The decomposed material can be used as manure. It helps in increasing the soil fertility.