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.
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Question: Fact: the shape of body parts is an inherited characteristic

Answer: Billy's new puppy had floppy ears. That might be because?


Question: Fact: refraction causes something to look different

Answer: A shoe seems gold and green at first, then at second glance looks blue and silver. This could be due to?


Question: Fact: echolocation is when some animals detect objects by hearing echoes by emitting sound

Answer:
Echolocation is when animals detect objects by hearing echos using what?