Question

Which of these processes produces the MOST oxygen ?

A)Cellular respiration
B)Breakdown of organic matter
C)Normal breathing process of many animals
D)photosynthesis in plants

Answer 1

D) Just like humans breathe out carbon dioxide for plants to inhale, plants exhale oxygen for it to be mixed with other chemicals to make what we breathe in.

Answer 2

The right answer is D) photosynthesis in plants

Cellular respiration does not produce oxygen, it consumes it rather. The same for the respiration of animals and the human being.

The degradation of organic matter does not produce oxygen.

Photosynthesis is the only one of these proposals that produces oxygen, and this process belongs to the plants.