NCERT Important Questions Class 9 Science biology Chapter 14
Important NCERT Extra Questions
Chapter 14 Natural Resources
NCERT Book Extra Questions for Session 2022-2023
CBSE Board and UP Board Others state Board
Why air is called “breath of life”?
Share
Air contains oxygen. The latter is needed by most organisms and plants for all respiration to go on. It is, therefore, rightly called the breath of life.