instruction:
Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
question:
Environmental changes is most responsible for the extinction of most species of plants and animals that have lived on earth.
answer:
What process is most responsible for the extinction of most species of plants and animals that have lived on Earth?


question:
The cells in the follicle undergo physical changes and produce a structure called a corpus luteum.
answer:
The cells in the follicle undergo physical changes and produce a structure called a what?


question:
Voltage is not the same as energy, but means the energy per unit charge.
answer:

What term is not the same as energy, but means the energy per unit charge?