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17 January, 23:20

Why are the crystals of intrusive igneous rock typically larger than those of extrusive igenous rock?

a. because the magma cools very quickly

b. because the magma cools much slower

c. because of a higher water content in the magma

d. because the temperatures of the magma are much lower

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Answers (2)
  1. 17 January, 23:41
    0
    Intrusive rocks come from magma. They cool slowly deep in Earth's crust. When magma cools underground, the crust acts like a blanket, insulating it, keeping it warm longer. Because the magma cools slowly, crystals of different minerals have time to grow.
  2. 17 January, 23:47
    0
    The correct answer is (B. because the magma cools much slower
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Home » Geography » Why are the crystals of intrusive igneous rock typically larger than those of extrusive igenous rock? a. because the magma cools very quickly b. because the magma cools much slower c. because of a higher water content in the magma d.
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