instruction:
Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
question:
A collapsing nebula leads to nuclear fusion process.
answer:
A collapsing nebula leads to what process?


question:
A 50 ml graduated cylinder of the following tools would give the most precise measurement of 15 milliliters of water.
answer:
Which of the following tools would give the most precise measurement of 15 milliliters of water?


question:
Plants that grow where you don't want them are called weeds.
answer:
What are plants called that grow where you don't want them?