Given scientific fact as input, generate the question from this fact such that it can be answered from the input.

Q: In science, theory is supported by much evidence, widely accepted by credible scientists, and unlikely to be disproved.

A: In science, what is supported by much evidence, widely accepted by credible scientists, and unlikely to be disproved?
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Q: Ice masses, acquifers, and the deep ocean are examples of water reservoirs.

A: Ice masses, acquifers, and the deep ocean are examples of water what?
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Q: The stratosphere is the heat source.

A:
What part of the atmosphere is the heat source?
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