Question

a) What are tropic levels ?
b) Write one advantage of biodegradable substance in environment?

Answer 1

1. Each level of the food chain is called trophic level.

2. i. Biodegradable substances can be decomposed easily by the act of microorganisms on them.

ii. These are eco-friendly.

Answer 2

"a. A Trophic level is defined as the position that a particular organism acquires in the food chain. They are also referred to as energy levels. There are various trophic levels in an ecosystem like primary consumers, secondary consumers, tertiary consumers and decomposers.

b. The advantages of biodegradable substances is that since they can be easily decomposed by microorganisms they do not cause any environmental pollution

"