Question

(d) What is metamorphism? What are its causes?​

Answer 1

Explanation:

The rocks are formed due to a complex process known as metamorphism... metamorphism involved high temperature and pressure... due to these process the physical and chemical properties of the rocks are completely changed and forms in to a new type of rocks knwn as metamorphism...

Causes-

Temperature, Pressure and Chemically active fluids are the main agents causing metamorphism. Combination of changes in temperature and pressure can also cause metamorphism. For example, certain metamorphic rocks are found under certain conditions of pressure and temperature...

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