Natural Science CLEP Prep Practice Exam

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The Earth’s crust is made up of

  1. Oceans and land masses

  2. Magma and a solid surface

  3. Igneous rocks and sedimentary rocks

  4. Metamorphic rocks and minerals

The correct answer is: Igneous rocks and sedimentary rocks

The Earth's crust is the outermost layer of the Earth, and it is made up of a variety of rocks and minerals. Among the different types of rocks found in the Earth's crust, igneous rocks and sedimentary rocks are the most abundant. Igneous rocks are formed from molten rocks, also known as magma, which cools and solidifies either on or beneath the Earth's surface. Sedimentary rocks, on the other hand, are formed from the accumulation and consolidation of rock fragments or organic materials over time. While oceans and land masses, magma and a solid surface, and metamorphic rocks and minerals are all components of the Earth's crust, they do not describe the majority of its composition, which is primarily made up of igneous and sedimentary rocks.

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