instruction:
Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
question:
Thermoregulation is the process when animals maintain an internal temperature.
answer:
What is the process when animals maintain an internal temperature?


question:
Six many neutrons do 99% of carbon atoms have.
answer:
How many neutrons do 99% of carbon atoms have?


question:
Ionic bonds between two atoms require one metal and one nonmetal.
answer:

Ionic bonds between two atoms require one metal and one what?