Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
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Question: Living organisms are made up of biochemical type of carbon-based compounds.

Answer: Living organisms are made up of what type of carbon-based compounds?


Question: Destructive interference in waves occurs two troughs what things overlap.

Answer: Destructive interference in waves occurs when what things overlap?


Question: The mantle layer of earth is located just below the crust.

Answer:
What layer of Earth is located just below the crust?