Chapter 1 Test

Chapter 1 Test - 1.

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Which of Earth's major divisions is thought to be the source of the magnetic  field? Your Answer: outer core   2. Which of Earth's major divisions is the thinnest? Your Answer: crust   3. Which of Earth's major divisions makes up over 82 percent of our planet's  volume? Your Answer: mantle   4. Which of Earth's major divisions is thought to be a solid, metallic sphere? Your Answer: inner core   5. This region is composed primarily of the igneous rock basalt. Your Answer: continental crust   Correct Answer: oceanic crust   6. This thick shell of rock is composed mostly of silicate minerals that are rich in  iron and magnesium. Your Answer: mantle   7. This region consists of a variety of rock types including the common igneous  rock granite. Your Answer: oceanic crust   Correct Answer: continental crust   8. This layer averages only about 7 kilometers (5 miles) in thickness.
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Chapter 1 Test - 1.

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