Question

In the oxygen cycle, oxygen is

(Choose one):

1.) added to and removed from the atmosphere by photosynthesis.


2.) added to the atmosphere by cellular respiration and removed by photosynthesis.


3.) added to the atmosphere by decomposers and removed by photosynthesis.


4.) added to the atmosphere by photosynthesis and removed by cellular respiration and combustion.

Answer 1

4.) added to the atmosphere by photosynthesis and removed by cellular respiration and combustion.

Step-by-step explanation:

• The atmospheric cycle is a biogeochemical cycle and is a transition between the oxidation state in ions, oxides, and molecules. The largest reservoir on the earth for oxygen island or lithosphere.

• The crust and mantle together make up 99.5% of oxygen by volume. The rest is found in the air that 21%, 22% in the biosphere, and 33% in the hydrosphere.