Given a fact, create a question that can be answered using the fact. Construct the question such that it is unambiguous, has a unique answer and the answer can be given using the fact.

[Q]: Fact: a rainbow is formed by refraction of light by splitting light into all different colors
[A]: If a sunbeam shoots through a rainstorm,?

[Q]: Fact: fat is used to keep animals warm
[A]: A bear's blubber?

[Q]: Fact: as the population of prey decreases , competition between predators will increase
[A]:
When the amount of food goes down, the amount of conflict between the organisms searching for it will?