Question

how do plants and animals maintain the balance of oxygen and carbon dioxide in the nature ​

Answer 1

And during the photosinthesis ofplants the balance of carbon dioxideand oxygen is made. The balance of oxygen and carbondioxide ismaintained in the atmosphere by theoxygen released by plants during photosynthesis and carbondioxidereleased by human,animals etc. in the atmosphere.

Answer 2

By exchange of gases

They take in CO2 and RELEASE O2

Which is required for our survival

By taking in CO2 they reduce amount of CO2 which is a greenhouse gas reducing global warming