Igneous Rocks Quiz
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Questions and Answers

What are the three components of magma?

  • Melt, solids, volatiles (correct)
  • Decompression, heat input, flux
  • Magma, lava, rock
  • Liquid, gas, minerals

What is the parent material of igneous rocks?

  • Sediment
  • Lava
  • Metamorphic rock
  • Magma (correct)

What occurs to form magma inside the Earth?

  • Complete melting due to pressure, cooling, or erosion
  • Partial melting due to decompression, heat input, or addition of a flux (correct)
  • Solidification of minerals
  • Condensation of gases

How are igneous rocks typically classified?

<p>By texture and mineral composition (D)</p> Signup and view all the answers

What is the term for magma that reaches the surface?

<p>Lava (A)</p> Signup and view all the answers

What are the three components of magma?

<p>Mobile ions, silicate minerals, and dissolved gases (C)</p> Signup and view all the answers

What is the term for molten rock that reaches the surface?

<p>Lava (B)</p> Signup and view all the answers

How do igneous rocks typically form?

<p>By cooling and solidifying of molten rock (C)</p> Signup and view all the answers

What is the parent material of igneous rocks?

<p>Magma (C)</p> Signup and view all the answers

How are igneous rocks typically classified?

<p>By texture and mineral composition (D)</p> Signup and view all the answers

What are the three components of magma?

<p>Liquid portion, solids, volatiles (D)</p> Signup and view all the answers

How are igneous rocks typically classified?

<p>Texture, mineral composition (C)</p> Signup and view all the answers

What is the parent material of igneous rocks?

<p>Magma (A)</p> Signup and view all the answers

What is the term for magma that reaches the surface?

<p>Lava (D)</p> Signup and view all the answers

What causes partial melting of rocks inside the Earth?

<p>Decompression, heat input, addition of a flux (D)</p> Signup and view all the answers

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