Q. Which of the following is/are biotic component/s of the environment?
1.Non – green plants
2.Symbionts
3.Decomposers
How many of the statements given above are correct?
Answer: C
Notes:
Explanation: The relationship and interaction between organism and environment are highly complex.
- It comprises both living (biotic) and non-living (abiotic) components. The environment is not static.
- Both biotic and abiotic factors are in a flux and keeps changing continuously

Source: Shankar IAS

