explain the oxygen cycle
Answers
Answered by
0
Answer:
I don't know sorry
Explanation:
ndjdjdjkd
Answered by
2
Answer:
Oxygen cycle, circulation of oxygen in various forms through nature. ... Free in the air and dissolved in water, oxygen is second only to nitrogen in abundance among uncombined elements in the atmosphere. Plants and animals use oxygen to respire and return it to the air and water as carbon dioxide (CO2).
Similar questions