Which is the best description of photophosphorylation?
the absorption of light energy by chlorophyll
the conversion of light energy to chemical energy
the removal of a phosphate group from a molecule
the conversion of adp to atp using light energy

The answer is the conversion of ADP to ATP using light energy. Photophosphorylation occurs in the light stage of photosynthesis. There are two types of photophosphorylation; cyclic and non-cyclic. In cyclic (which occurs only in bacteria), only photosystem I is utilized in the process while in non-cyclic, both photosystems I and II are used. In non-cyclic photophosphorylation, in addition to ATP, NADH is also synthesized.

then that particular organisms become extinct.

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.