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

Rainfall weather phenomenon increases the rate of weathering in rock and soil.
What weather phenomenon increases the rate of weathering in rock and soil?

The core of a star collapses during a supernova, forming a neutron star.
The core of a star collapses during what event, forming a neutron star?

Three different states of matter makes the halogen group so diverse.
What makes the halogen group so diverse?