CBSE Class 10 Answered
what is igneous, Metamorphic and sedimentary rocks
Asked by jasvindersinghsangha62 | 16 Jun, 2020, 04:43: PM
Expert Answer
The igneous rocks are also known as primary rocks as they form the basis of formation of other types of rocks. Igneous rocks are formed because of cooling, solidification and crystallisation of molten material known as magma.
Sedimentary rocks are formed when the fragments of igneous rocks are broken down because of weathering and are carried away by the agents of gradation such as water, glaciers and ocean waves.Deposition of these fragments of rocks results in the formation of sedimentary rocks
When existing rocks are subjected to high temperature and pressure, metamorphic rocks are formed. Metamorphism is a process by which these metamorphic rocks are formed
Answered by Christina | 18 Jun, 2020, 09:44: AM
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