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254

Q:

What type of rocks were once igneous or sedimentary, but have metamorphosed as a result of intense heat and/or pressure within the Earth's crust?

  • 1
    Granite
  • 2
    Metamorphic
  • 3
    Sandstone
  • 4
    Basalt
  • Show Answer
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Answer : 2. "Metamorphic "
Explanation :

Metamorphic rocks started out as some other type of rock, but have been substantially changed from their original igneous, sedimentary, or earlier metamorphic form. Metamorphic rocks form when rocks are subjected to high heat, high pressure, hot mineral-rich fluids or, more commonly, some combination of these factors.

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