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: a glacier causes mechanical weathering
answer:
Which is true?

question:
Fact: the length of the hair of an animal is an acquired characteristic
answer:
An Afghan Hound get all its hair from?

question:
Fact: sunlight and rain can cause a rainbow
answer:
A rainbow is caused by rain and what?