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

Radioactivity is the release of particles and/or energy from the nucleus of an atom.
What is the release of particles and/or energy from the nucleus of an atom described as?

Hydras and sea anemones are examples of apolyp.
Hydras and sea anemones are examples of what form?

Heat from the sun causes the most evaporation of water from a lake.

Which of these causes the MOST evaporation of water from a lake?