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: Air is made of atoms.

Answer: Which of the following is made of atoms?


Question: Terrestrial biomes are classified by climatic factors and types of primary producers.

Answer: What are classified by climatic factors and types of primary producers?


Question: The immune system typically recognizes, attacks, and destroys foreign cells or substances that may cause disease.

Answer:
Which body system typically recognizes, attacks, and destroys foreign cells or substances that may cause disease?