Q.1. Define natural environment. What are its domains?
Ans. Natural Environment: All the objects created by nature constitute physical or natural environment. It refers to both biotic and abiotic conditions existing on the earth. Land, water, air, plants and animals form the natural environment. Lithosphere, hydrosphere, atmosphere and biosphere are the domains of natural environment.
Q.2. What is Hydrosphere?
Ans. Hydrosphere is the domain of water. It comprises various sources of water. The different water bodies like rivers, ponds, seas, oceans etc are its major components. Hydrosphere is essential for the support of life on this planet.
Q.3. Why is it important to study Natural Environment?
Ans. There are many reasons which make it important to study Natural Environment such as -