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

Q: Compounds with metals and nonmetals sharing electrons are known as ions kinds of compounds.

A: Compounds with metals and nonmetals sharing electrons are known as what kinds of compounds?
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Q: A decline in blood flow to kidneys organs stimulates release of the enzyme renin, in turn stimulating the reabsorption of sodium and water.

A: A decline in blood flow to what organs stimulates release of the enzyme renin, in turn stimulating the reabsorption of sodium and water?
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Q: Ground tissue makes up most of the inside of a plant.

A:
What makes up most of the inside of a plant?
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