instruction:
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.
question:
Fact: humans building homes in an ecosystem causes that environment to change
answer:
What is an example of humans building houses in a ecosystem and causing change in the environment as a result?

question:
Fact: bacteria cause food poisoning
answer:
How can you help to ensure that you will stay free from becoming ill after eating meat?

question:
Fact: a meter stick is used to measure length
answer:
Calculating a short distance can be accomplished with a?