fact and question: kilometers km are a unit used for measuring distance generally used for values between 1 and 50000000
Question: If John were going to the store, how would he measure his trip?

What's the answer?

answer: kilometer

fact and question: pollution is a source of pollutants
Question: Pollution is a source of what?

What's the answer?

answer: dirtying agents

fact and question: beads of water are formed by water vapor condensing
Question: Where would you point to as an example of condensation, if limited to an office building?

What's the answer?

answer: the beads on a cold root beer can

fact and question: an earthquake usually occurs over a period of 10 to 30 seconds
Question: Earthquakes can devastate an area even though they usually last

What's the answer?

answer:
half a minute