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Limestone is formed at the ocean's floor, after deposition of precipitated calcite, and shells of sea organisms have sank, and been deposited over time and then immense pressure crushes them into stone. Eventually, tectonic plate movement and shifting and upheaval leads to their arrival at the surface where they can be examined or utilized or just exposed to the elements.

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14y ago
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8y ago

Lime is a calcium product - calcium oxide or calcium hydroxide. It is used in building and is also used in agriculture to increase the pH of soil that is too acidic, and to provide a source of calcium and magnesium for plants.

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8y ago

It's an alkali. It neutralises the acids found in some soils - to make it a neutral growing medium.

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Q: What type of substance is in limestone?
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