Apopulation of snakes that eat small rodents

Genetic variation will increase because of a new habitat and food source.

Explanation:

chlorophyll a: this is the most abundant pigment in plants. chlorophyll a absorbs light with wavelengths of 430nm(blue) and 662nm(red). it reflects green light strongly so it appears green to us.

well, that's easy; the answer's c, "it reduces contamination of the water and substrate of the estuary."