Exam 1: Introduction to Planet Earth

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Early Polynesians only traveled within sight of land.

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The Earth's crust solidified around 4.5 billion years ago.

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Radioactive isotopes can sometimes be used to determine the:

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Fish first appeared:

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Match the term with the appropriate phrase. You may use each answer once, more than once or not at all. -mantle

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Match the term with the appropriate phrase. You may use each answer once, more than once or not at all. -basalt

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One distinction between an "ocean" and a "sea" is that a sea:

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Vikings led by Thor Heyerdahl established temporary colonies in North America.

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Distinguish between an ocean and a sea.

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All of the following are TRUE concerning the deepest part of the ocean except:

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Radiometric age dating is used to determine the age of most rock layers.

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Heterotrophic organisms can make their own food from inorganic carbon sources.

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Describe Stanley Miller's landmark experiment. How did the results of this experiment change theories regarding the evolution of life on Earth?

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Match the term with the appropriate phrase. You may use each answer once, more than once or not at all. -lithosphere

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Carbon dating is used to determine the absolute age of a rock or fossil.

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Organisms that break down organic molecules and release energy are called:

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Anaerobic organisms require oxygen to survive.

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Explain why the presence of free oxygen in our atmosphere marks an important step in the evolution of life on Earth.

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Match the term with the appropriate phrase. You may use each answer once, more than once or not at all. -aesthenosphere

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Match the term with the appropriate phrase. You may use each answer once, more than once or not at all. -crust

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