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: the looseness of soil has a positive impact on a plant 's roots' growth in that soil
[A]: It is very difficult for carrots to grow in?

[Q]: Fact: humans building homes in an ecosystem causes that environment to change
[A]: What is an example of humans building houses in a ecosystem and causing change in the environment as a result?

[Q]: Fact: rain is a source of water
[A]:
Rain helps?