Question

Animals and plants are using up oxygen all the time. why does the amount of oxygen in the atmosphere not go down

Answer 1

Animals and plants are using up oxygen all the time but the  oxygen in the atmosphere does not go down because the plants take carbon dioxide and give oxygen during the day while in the night it reverses it takes oxygen and gives co2  

TRUE FACTS:

1 tree and produce enough O2 to 4 people

Answer 2

Answer:

Explanation:

Plant take in carbon dioxide and give out surplus oxygen while animals take in oxygen and take out surplus carbon dioxide. Between them, they keep the gases in the atmosphere in balance