Economic effects on limestone?

Question

Economic effects on limestone?

Answer 1

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Stupid question deserves stupid answer.

Answer 2

Economic uses of limestone (if that's what you mean):

1 Used as a source of calcium , particularly as 'agricultural lime'; which is often simply finely crushed limestone (calcium carbonate)

2  A source of hydrated lime (calcium hydroxide), also used as a source of calcium and as an alkali for treating acidic soils, as well as in lime mortar for bricklaying.

3  A source of unhydrated 'quick lime' (calcium oxide), used as a chemical as well as for making hydrated lime

4 Used as a flux in iron and steel manufacture (as well as other metals such as copper).  The crushed limestone reacts with the silica materials in the metal ores, producing slag that can easily be removed

5 (most important use) Calcined (heated) with clay or shale in a rotating kiln to produce complex calcium aluminium hydroxides as 'Portland Cement', the most widely used cement product.  Used the world over to make concrete.