Question

as the plant is consumer and producer of oxygen. Then how the concentration of gases maintained in the environment?

Answer 1

concentration of gases maintaining the environment it's because plant giving oxygen and we giving carbon dioxide anyone have to do the carbon dioxide into oxygen or converts so the environment is running on the gases ok

Answer 2

actually the thing is that the plants takes only a little amount of oxygen for themselves and rest they give out which we also called the process of Auto- respiration process ...therefore it's concentration is always maintained in the atmosphere and we talk about C02 the whole we gave out is not the all amount is consumed by the animals so is still left in the environment this balancing the concentration.
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