instruction:
Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
question:
A pregnant woman should avoid toxic substances while pregnant.
answer:
What should a pregnant woman avoid while pregnant?

question:
Stirring, surface area, and temperature affect the rate at solute dissolves what occurs.
answer:
Stirring, surface area, and temperature affect the rate at which what occurs?

question:
Megapascals is the measure of water potential.
answer:
What is the measure of water potential?