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Geography > Ch 2 Study Guide > Flashcards

Ch 2 Study Guide Flashcards

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0
Q

How many planets are in our galaxy?

A

Eight planets

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1
Q

What galaxy is the earth part of?

A

Milky Way galaxy

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2
Q

Where is the Earth’s core?

A

Center of the earth

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3
Q

Which part of the earth holds most of its mass?

A

Mantle

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4
Q

What is the atmosphere

A

A layer of gases that surrounds the earth

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5
Q

What is the lithosphere

A

The crust and upper mantle

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6
Q

What is the hydrosphere

A

All water on earth

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7
Q

What is the biosphere

A

All living things on earth

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8
Q

Explain the theory of continental drift

A

Started as one continent named Pangaea, techtonic movement forced continents apart

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9
Q

What percentage of earth is covered in ocean water

A

71%

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10
Q

What are the four oceans

A

Atlantic, Pacific, Arctic, Indian

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11
Q

What do the ocean currents help disperse

A

Heat

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12
Q

What produced most natural freshwater lakes

A

Glaciers

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13
Q

How were most salt water lakes created

A

Changing levels of Earth’s oceans

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14
Q

What is a valley

A

Low land between hills and mountains

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15
Q

What is a canyon

A

A narrow and deep valley with steep sides

16
Q

What is a tectonic plate

A

Pieces of earths lithosphere

17
Q

What is groundwater

A

Water held underground

18
Q

What is a volcano

A

A chamber under the ground that holds gases and magma

19
Q

What is an island

A

A body of land surrounded by water

20
Q

What is a peninsula

A

A body of land surrounded by water on three sides

21
Q

What is a harbor

A

A sheltered area of water that is deep enough to dock ships

22
Q

What is a Mesa

A

A raised area of land with a flat top

23
Q

what is subductive movement

A

One tectonic plate forces another tectonic plate under it

24
Q

What is a tectonic collision

A

Two tectonic plates crash into each other

25
Q

What is an earthquake

A

Caused when 2 tectonic plates collide and create a tremble in the earth

26
Q

Where is an earthquake’s focus

A

Where the tectonic plates collide underground when an earthquake is formed

27
Q

What is an aftershock

A

When the place settle after an earthquake

28
Q

What is a tsunami

A

A great oceanic wave created by earthquakes and landslides

29
Q

What are two types of erosion

A

Mechanical and chemical

30
Q

Explain what water erosion and abrasion are

A

Water erosion is when particles are picked up by water and moved to different areas

Abrasion is when water picks up particles and particles have a sandpaper effect on other particles

31
Q

What is wind erosion

A

Wind picks up particles and moves them to different areas

Geography (19 decks)

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