Question

4. Why all the oxygen is not getting used up even though a large number of organisms are consuming
it? How is the oxygen getting replaced back in the atmosphere? Explain.​

Answer 1

hii mate ,

this is all because of plants and trees as they release oxygen during photosynthesis....the oxygen is replaced by human beings with carbon di oxide while the process of respirations.

this Co2 is used by plants for food processing and release oxygen this cycle repeat again and again ....therefore oxygen is not getting totally used up..

so mate plant trees

hope my ans. helps u ,☺️

Answer 2

All oxygen is not getting used up because of the below:

• The primary component of the living process and life is oxygen gas, which is breathed by all living creatures, animals, and humans.
• The cells of the body use up this oxygen to carry out all of their functions successfully, which is used up by all species.
• The oxygen is not getting ended up in the atmosphere since it is replaced back in a cyclical process in the atmosphere.
• In the atmosphere, it is continually replenished.

Oxygen is getting replaced in the atmosphere because:

• As a byproduct of their food synthesis process, all plants, primarily green plants, emit oxygen.
• This process increases the amount of fresh oxygen accessible in the atmosphere as more green plants are grown on the planet.
• The continuous cycle of oxygen in the atmosphere ensures that oxygen is not exhausted and is renewed by plants.

• Hence, explained.