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

Q: In paragraph 2, they had been untouched for centuries does the phrase à¥ˆ€œfrozen in timeà¥ˆ€ suggest about the figures.

A: In paragraph 2, what does the phrase à¥ˆ€œfrozen in timeà¥ˆ€ suggest about the figures?
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Q: Limestone is insoluble in water, so acid can dissolve it.

A: Limestone is insoluble in water, so what can dissolve it?
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Q: Epithelial? tissue consists of cells that cover inner and outer body surfaces.

A:
What type of tissue consists of cells that cover inner and outer body surfaces?
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