Question

decribe
the oxygen cycle

Answer 1

maybe this picture help you

Answer 2

Steps of oxygen cycle.

Step 1)Animals take in oxygen through the process of respiration. And release CO2 into the atmosphere.

Step 2)Carbon dioxide, released by animals is used in plants in the process of photosynthesis.

Step 3)Plants release oxygen into the atmosphere as a by-product of photosynthesis.

step 4)Fuels need oxygen for combustion so they take oxygen and release CO2 into the atmosphere as a by product along with other gases like N2 etc.

Step5)CO2 is released into the air in the process of decaying of dead animals and plants.

step 6)This CO2 is taken by plants for the process of photosynthesis and O2 is released, and this process continues.