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Astronomy > Chapter 5 > Flashcards

Chapter 5 Flashcards

1
Q

Scarp

A

raised rigid on the surface of Mercury

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2
Q

Regolith

A

Pulverized rock that covers the moon as a fine dust

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3
Q

Ray

A

bright line emanating outward from craters

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4
Q

Maria

A

smooth dark regions on the moon where lava once flowed

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5
Q

Caloris Basin

A

a very large impact crater on Mercury

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6
Q

Olympus Mons

A

largest mountain ever discovered

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7
Q

Mauna Kea

A

largest mountain on earth-measured from the sea floor

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8
Q

molecules that dominated the Earth’s primordial atmosphere

A

carbon dioxide and water vapor

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9
Q

The gradual warming of the Sun

A

initiated the runaway greenhouse effect on Venus

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10
Q

The surface of the moon contains geologic evidence for ___________ on the moon in the past

A

volcanoes

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11
Q

factor most helps the Earth maintain a relatively constant temperature

A

greenhouse gasses

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12
Q

oxygen in our atmosphere came from

A

photosynthesis of living organisms

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13
Q

ejecta

A

bright circles around impact craters

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14
Q

hottest surface temperatures

A

Venus

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15
Q

cities would be covered with water if the Greenland Ice Sheet melted completely

A

Miami and Amsterdam

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16
Q

Mercury gets incredibly hot and incredibly cold because

A

it does not have an atmosphere

17
Q

Earth’s oceans come from

A

Rain from water vapor in the early atmosphere

18
Q

best time to observe the moon to see its crater is during a

A

crescent moon

19
Q

atmosphere of Venus is composed almost entirely of

A

carbon dioxide

20
Q

appearance of Earth’s moon is nearly identical to

A

Mercury

21
Q

On Mercury and the Moon, we notice that larger craters __________ smaller craters

A

came before

22
Q

Highland

A

composed of calcium and aluminum rich feldspar

Astronomy (8 decks)

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