Which statement is a hypothesis is that would best address the question "does sunlight or temperature of the rabbit's habitat affect fur thickness? "
question 4 options:
a)
rabbits like to eat grass.
b)
if a rabbit lives in a warm habitat, then their fur will be less thick.
c)
rabbits will have dark fur in warm habitats.

A) surely isn't a hypothesis that could be used to assess the question "does sunlight or temperature of the rabbit's habitat affect fur thickness" because it doesn't talk about fur thickness.

B) could be a hypothesis. However, hypothesis usually are not stated in if-then clauses. However, it also does contain an idea with a possible consequence.

C) is the correct answer. This idea predicts that rabbits in warm habitats will have dark fur. This is how hypothesis are usually stated. 

c)Turning points in environmental policy have come about through increased public awareness.

The true statement about environmental policy is that turning points in environmental policy have come about through increased public awareness. As many cases in history, a problem became first evident to the public eye and awareness, and only after that is converted into law. It is much more difficult that a problem first is resolved by law and than becomes a priority in the eye of the pubblic.