The answer might be a im not really sure if i remember
The process of respiration is essential in the oxygen/carbon dioxide cycle. Respiration removes OXYGEN from the atmosphere and produces and releases CARBON DIOXIDE to the atmosphere. answer is letter D.
Respiration driven by a mechanical series called inhalation and exhalation. We inhale or breathe in oxygen and exhale or breathe out carbon dioxide.
Answer:
C
Explanation:
plants use solar energy they can't get chemical energy because they can't eat like people
people use chemical energy to sustain themselves
A, D, and not sure but maybe E