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

Ex Input:
Environmental changes is most responsible for the extinction of most species of plants and animals that have lived on earth.

Ex Output:
What process is most responsible for the extinction of most species of plants and animals that have lived on Earth?


Ex Input:
You call the separation of ions that occurs when a solid ionic compound dissolves dissociation.

Ex Output:
What do you call the separation of ions that occurs when a solid ionic compound dissolves?


Ex Input:
Add frequencies do light emitters do to what you see.

Ex Output:

What do light emitters do to what you see?