Photochemical smog results from the interaction of pollutants in the presence of
a. water vapor.
b. oxygen.
c. sunlight.
d. rainfall.

The answer is C

Explanation:

Photochemical smog results from the interaction of pollutants in the presence of sunlight

a

explanation:

many plants naturally reproduce this way, but it can also be induced artificially. horticulturalists have developed asexual propagation techniques that use vegetative plant parts to replicate plants. success rates and difficulty of propagation vary greatly. monocotyledons typically lack a vascular cambium and therefore are harder to propagate.

x would be the most and the least would be y because there are more fruit   and seeds than flock z has insects