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Why are igneous rocks also known as primary rocks?

Asked by Topperlearning User 23rd April 2015, 1:07 PM
Answered by Expert
Answer:

Igneous rocks are also known as primary rocks chiefly because of the following two reasons:

  • Igneous rocks are formed due to the cooling and solidification of lava and thus are naturally formed.
  • All the other types of rocks are formed from igneous rocks.
Answered by Expert 23rd April 2015, 3:07 PM
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