Question

Write a short note on importance of water in biosphere.

Answer 1

Biosphere: This includes all the parts of the Earth that support life. It includes the land surface (lithosphere), water resources (hydrosphere), and atmosphere.

Importance of water in the biosphere:

1. Water forms 60 – 90% of the cell contents.
2. All cellular processes take place in a water medium.
3. It acts as a medium of transport in the body for dissolved minerals, vitamins, and nutrients.
4. It serves as a habitat for a variety of organisms.
5. It influences the regulation of the climate of a place.
6. It is used for drinking, washing, bathing, and other household purposes.
7. It is used in industries and nuclear reactors.
8. It is used to dispose of excreta and organic wastes.