Which of the following is true in regards to "Environment"?

1. It is defined as the total planetry inheritance and the totality of all resources
2. Components of environment are: Biotic and Abiotic
3. Biotic elements include-rock, sunlight etc. whereas, abiotic elements include-plants, animals etc.

1 and 2

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 interrelationship between these biotic and abiotic components of the environment.