Plants evolved the ability of photosynthesis during the A) ...

[vHAUNG6011]

Plants evolved the ability of photosynthesis during the
 
  A) Cambrian period.
  B) Precambrian.
  C) Paleozoic era.
  D) Pleistocene.

Question 2

The process of photosynthesis is important because it
 
  A) converts carbon and water to hydrocarbon and free oxygen.
  B) contributed to the development of an ozone layer.
  C) is an energy source that drives the geologic process.
  D) allowed increased infiltration of solar energy.

[tkempin]

Answer to Question 1

Answer: B

Answer to Question 2

Answer: B

[vHAUNG6011]

TYSM

[bdobbins]

Gracias!