The answer is A. Oligotrophic lakes are clear and hence
have little vegetation in them (hence no net primary production) that
could initiate the process of eutrophication. Eutrophication is brought about when bacteria
break down the high amount of organic matter hence reduce the oxygen supply in
the waters.
The answer would have to be radiation because the air cools us off most times by moving around the radiation to cool it off. If there was no air to cool of the radiation from the sun, we would burn up, but then of course there are atmospheres.
The term which describes any relationship in which two species live closely together is called SYMBIOSIS.
Dissociate in water because water is a polar molecule
The last one, wind blowing for a long time wont cause much wind, but if the wind is short and choppy, it will cause the waves to be choppy.