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 chloroplast contains chlorophyll
[A]: What contains chlorophyll?


[Q]: Fact: landslides often occur on mountains
[A]: It's easy to be crushed by rocks lounging?


[Q]: Fact: rest has a positive impact on a health
[A]:
Which habit is healthiest for humans?