limestone mining - geology

... but despite our Nation's abundance of limestone, there have been cement ... about limestone mining ... certainly affect future supplies of limestone.

Acid rain - Wikipedia

... emissions of sulfur dioxide and nitrogen oxides into the atmosphere have ... Coral's limestone skeletal ... Human health effects. Acid rain does not ...

Limestone - Wikipedia

Limestone is a sedimentary rock, composed mainly of skeletal fragments of marine organisms such as coral, forams and molluscs. Its major materials are the minerals ...

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