instruction:
Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
question:
A student should use a balance to compare the masses of two small rocks.
answer:
Which tool should a student use to compare the masses of two small rocks?


question:
Southern asia does the most important monsoon in the world occur.
answer:
Where does the most important monsoon in the world occur?


question:
You call a substance that cannot be separated into smaller pieces, which is also defined by the number of protons it has, a(n) element.
answer:

What do you call a substance that cannot be separated into smaller pieces, which is also defined by the number of protons it has?