The diagram below represents part of the oxygen cycle.

Which biological process is represented by arrows 1 and 3?
A.
osmosis
B.
photosynthesis
C.
adaptation
D.
respiration

The answer will be D. Respiration

Explanation:

in living organisms involving the production of energy, typically with the intake of oxygen and the release of carbon dioxide from the oxidation of complex organic substances.

the national environmental policy act (nepa) is a united states environmental law that promotes the enhancement of the environment and established the president's council on environmental quality (ceq). the law was enacted on january 1, 1970. to date, more than 100 nations around the world have enacted national environmental policies modeled after nepa.