In a species of snail, dark-shelled individuals are better hidden from bird predators in the shady forest, while light-shelled individuals are better hidden in well-lit brushy edge areas. if there were no areas of intermediate brightness in this habitat, which type of selection would act on shell color in these snails?
a. stabilizing selection
b. directional selection
c. disruptive selection

c. disruptive selection

Explanation:

Disruptive selection is the changes in population genetics favouring extreme values for a trait over intermediate ones.

It's also called diversifying selection as it cause a population to become reproductively distinct from the parent population.

significant amounts of nitrogen oxides, carbon monoxide, and other pollution

explanation:

passenger vehicles are a major pollution contributor, producing significant amounts of nitrogen oxides, carbon monoxide, and other pollution. in 2013, transportation contributed more than half of the carbon monoxide and nitrogen oxides, and almost a quarter of the hydrocarbons emitted into our air.

the answer will be a) proteins i believe