Question

Consider the following processes: respiration, chemosynthesis, combustion of firewood, and photosynthesis. How many of these result in the release of oxygen into the atmosphere?
A) none
B) 1
C) 2
D) 3
E) all 4

Answer 1

Answer:

C.2

Explanation:

Respiration does not release oxygen to the atmosphere

Chemosynthesis and photosynthesis releases oxygen to the environment

While combustion use oxygen up