Question

What is limestone? How is it formed?
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Answer 1

Answer:

a hard sedimentary rock, composed mainly of calcium carbonate or dolomite, used as building material and in the making of cement.

Explanation:

Limestone is formed in two ways. It can be formed with the help of living organisms and by evaporation. Ocean-dwelling organisms such as oysters, clams, mussels and coral use calcium carbonate (CaCO3) found in seawater to create their shells and bones.

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Answer 2

limestone is a type of sedimentary rock which is used to make buildings and cement.

formation;

It can be formed by two ways either due to crystallization from sea water or by collecting the sea shell's shells and forming it.