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Q: 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
Correct Answer: Option C - Metamorphic rock – Metamorphic is a rock that has changed under high temperature and high pressure. Exp. Gneiss, marble, quartzite..... etc. Igneous rock : Igneous rock are formed when hot molten rock (magma) cools and freezes solid. Exp. Granite basalt, trap, dolomite, gabbro, rhyolite, Diorite. Sedimentary rock : A type of rock that form when particles from other rock or the remain of plants and animals are pressed and cemented together. Exp – shale, sandstone, lime stone, conglomerate.
C. Metamorphic rock – Metamorphic is a rock that has changed under high temperature and high pressure. Exp. Gneiss, marble, quartzite..... etc. Igneous rock : Igneous rock are formed when hot molten rock (magma) cools and freezes solid. Exp. Granite basalt, trap, dolomite, gabbro, rhyolite, Diorite. Sedimentary rock : A type of rock that form when particles from other rock or the remain of plants and animals are pressed and cemented together. Exp – shale, sandstone, lime stone, conglomerate.

Explanations:

Metamorphic rock – Metamorphic is a rock that has changed under high temperature and high pressure. Exp. Gneiss, marble, quartzite..... etc. Igneous rock : Igneous rock are formed when hot molten rock (magma) cools and freezes solid. Exp. Granite basalt, trap, dolomite, gabbro, rhyolite, Diorite. Sedimentary rock : A type of rock that form when particles from other rock or the remain of plants and animals are pressed and cemented together. Exp – shale, sandstone, lime stone, conglomerate.