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

Ex Input:
Radioactivity is the release of particles and/or energy from the nucleus of an atom.

Ex Output:
What is the release of particles and/or energy from the nucleus of an atom described as?


Ex Input:
When a sperm penetrates the egg, it triggers the egg to complete meiosis.

Ex Output:
When a sperm penetrates the egg, it triggers the egg to complete what?


Ex Input:
Evidence allows theories to be widely accepted.

Ex Output:

What allows theories to be widely accepted?