Exam 1: Introduction to Earth

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Universal Time Coordinated is also known as ________.

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The Tropic of Cancer is an example of a great circle.

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Define equilibrium and give an example from within the Earth system.

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Write a paragraph explaining the physical basis of standard time zones.

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At the North Pole, one degree of longitude extends ________ kilometers on the ground.

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Science understands the solar system to be on the order of ________ billion years old.

(Short Answer)
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When one crosses the prime meridian, the time zone does not change.

(True/False)
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The first nearly correct measurement of the Earth's circumference was made by ________.

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Pluto was long thought to be a planet. New discoveries in the Kuiper Belt have changed its official designation to ________.

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The solid, inorganic portion of the Earth system is known as the ________.

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"Greenwich Mean Time" is also known as ________.

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At times, latitudes higher than ________ degrees can have 24 hours or more of continuous darkness.

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The planets in our solar system formed from a cold, rotating disk of gas and dust surrounding the Sun.

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The world is divided into ________ time standard zones.

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Rotation of the Earth DOES NOT cause ________.

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The size of the Universe is best described ________.

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Eratosthenes was the first to accurately measure the Earth's ________.

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The most important physical effect of the Earth's rotation is ________.

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The amount of time the Earth takes to revolve around the Sun is most properly known as a(n) ________.

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The plane of the ecliptic is ________.

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