Question

1)Distinguish between calcareous and carbonaceous sedimentary rocks.
2)What are the uses of sedimentary rocks?3)How are metamorphic rocks formed?4) How are metamorphic rocks different from other rocks ?
5) how are metamorphic rocks commercially important?

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Answer 1

Igneous rocks are formed from melted rock deep inside the Earth. Sedimentary rocks are formed from layers of sand, silt, dead plants, and animal skeletons. Metamorphic rocks formed from other rocks that are changed by heat and pressure underground.

Answer 2

Answer:

Sedimentary rocks originate when particles settle out of water or air, or by precipitation of minerals from water. They accumulate in layers. Metamorphic rocks result when existing rocks are changed by heat, pressure, or reactive fluids, such as hot, mineral-laden water.