Given scientific fact as input, generate the question from this fact such that it can be answered from the input.

[EX Q]: The mass remains the same does burning matter affect its mass.
[EX A]: How does burning matter affect its mass?

[EX Q]: Radioactivity is the release of particles and/or energy from the nucleus of an atom.
[EX A]: What is the release of particles and/or energy from the nucleus of an atom described as?

[EX Q]: Corals build hard exoskeletons that grow to become coral reefs.
[EX A]:
Corals build hard exoskeletons that grow to become what?