Ocean and freshwater contamination
a. does not affect marine life
b. is not affected by agriculture
c. results from industrial activity
d. is independent of human activity

c. results from industrial activity


Freshwater and ocean is affected since these toxic and harmful substances can travel from groundwater to the different bodies of water.
Groundwater flows through rock with a high porosity and a high permeability at a fast rate. The denser and less permeable  the rock is, the slower the groundwater moves. The greater the permeability of a rock, the faster the groundwater flows through it. Groundwater is water that is found in spaces and fractures in rocks, as well as in the sediment between the earth's surface. 

Used to water and cool climates, probably not thick coated or fluffy. they most likely have thin coats and have to survive to find food. sorry if this wasn't the answer you were looking for..: )