If CO2 was in very small amounts then it would be the limiting factor of photosynthesis, this means the process will take place at a much slower rate
D) Vaporization; Perspiration
Perspiration is when the human body kinda evaporates the sweat to cool the body down
I’m pretty sure the answer to this is A
Melanin
is
the
answer
you're
looking
for
Racial and Economic Inequalities
Hope this helps (: