instruction:
Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
question:
Destructive interference in waves occurs two troughs what things overlap.
answer:
Destructive interference in waves occurs when what things overlap?


question:
The scientific process of collecting data outside the lab (in the "wild") is known as field work kind of work.
answer:
The scientific process of collecting data outside the lab (in the "wild") is known as what kind of work?


question:
Hydrometallurgy is the preferred method for separating late transition metals from their ores.
answer:
What is the preferred method for separating late transition metals from their ores?