In the oxygen–carbon dioxide cycle,

a.

animals produce oxygen used by plants for photosynthesis.

b.

animals produce oxygen used by plants for respiration.

c.

animals produce carbon dioxide used by plants for photosynthesis.

d.

animals produce carbon dioxide used by plants for respiration.

C is the correct option

C is the correct option

c.  animals produce carbon dioxide used by plants for photosynthesis.

Explanation:

Photosynthesis is responsible for producing and maintaining the oxygen content in the atmosphere, and that supplies all of the organic matter and most of the life system on earth. Earth animals and other organisms thus inhale this and give out carbon and hence are called as the consumers or primary consumer while the pants are called as producers as they can transform the contents when reacting in sunlight.

c.  animals produce carbon dioxide used by plants for photosynthesis.

Explanation:

Photosynthesis is responsible for producing and maintaining the oxygen content in the atmosphere, and that supplies all of the organic matter and most of the life system on earth. Earth animals and other organisms thus inhale this and give out carbon and hence are called as the consumers or primary consumer while the pants are called as producers as they can transform the contents when reacting in sunlight.

Mexico has a host of environmental problems, including significant chemicalpollution  from factory discharges and waste dumping, but the main threat to itsbiodiversity  probably stems from  deforestation  and other natural habitat losses. forest habitat is lost for a number of reasons