Question

Gas exchange between humans and plants involves
A. humans giving NH3 to plants and plants giving H2O to humans

B. humans giving H2O to plants and plants giving H2O2 to humans

C. humans giving O2 to plants and plants giving CO2 to humans

D. humans giving CO2 to plants and plants giving O2 to humans

Answer 1

Answer:

D

Explanation:

Humans giving CO2 to plants and plants giving O2 to humans.

Answer 2

Answer:

D. humans giving CO2 to plants and plants giving O2 to humans

Explanation:

Hope this helps