instruction:
Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
question:
Hand lens tool should a student use to see the patterns on a small object.
answer:
Which tool should a student use to see the patterns on a small object?

question:
Competive exclusion princple explains why two different species cannot occupy the same niche in the same place for very long.
answer:
What explains why two different species cannot occupy the same niche in the same place for very long?

question:
Menopause occurs in in middle adulthood.
answer:
At what time of life does menopause occur?