Q. Environment is made of biotic and abiotic elements. Which of the following is/are biotic element(s) of environment?

1. Sunlight
2. Rocks
3. Forests

Select the correct answer from the codes given below:
Answer: Only 3
Notes: Forests is a biotic element of environment. Environment is defined as the total planetary inheritance and the totality of all resources. It includes all the biotic and abiotic factors that influence each other. While all living elements-the birds, animals and plants, forests, fisheries, etc.- are biotic elements, abiotic elements include air, water, land, etc. Rocks and sunlight are all examples of abiotic elements of the environment. A study of the environment then calls for a study of the inter- relationship between these biotic and abiotic components of the environment.