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Building Materials

Q1: Rocks formed due to alteration of original structure due to heat and excessive pressure are called

A sedimentary rocks

B igneous rocks

C metamorphic rocks

D none of these.

ANS:C - metamorphic rocks

Rocks formed due to metamorphism (process responsible for all the changes that take place in an original rock under the influence of changes in the surrounding, conditions of temperature and pressure) are known as metamorphic rocks.



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