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Reviewer > Earth Science: Lesson 2 Quiz > Flashcards

Earth Science: Lesson 2 Quiz Flashcards

1
Q

Lithosphere broken into tectonic plates

A

Plate Tectonics Theory

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2
Q

How many plates are there?

A

7 major and many minor plates

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3
Q

These plates are above a weak layer called _____________

A

Asthenosphere

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4
Q

What are the 7 major plates?

A
  • African
  • Antarctic
  • Eurasian
  • North American
  • South American
  • India-Australian
  • Pacific Plates
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5
Q

What are the 3 types of plate boundaries?

A
  • Divergent
  • Convergent
  • Transform Fault
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6
Q

What is the largest plate?

A

Pacific Plates

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7
Q

What occurs when 2 plates move apart?

A

Divergent Plate Boundary

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8
Q

Why does 2 plates move apart in divergent plate boundary?

A

due to upwelling of material from mantle

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9
Q

What plates are evident in divergent plate boundary?

A
  • North American
  • Eurasian
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10
Q

What are the 3 examples/types of divergent plate boundaries?

A
  • Oceanic Ridge
  • Rift Valley
  • Continental Rifts
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11
Q

Rift valley is also known as?

A

Grabens

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12
Q

What do you call an underwater mountain ridge formed through uplifting of ocean floor due to convection currents rising in mantle (magma rising)?

A

Oceanic Ridge

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13
Q

What is an example of Oceanic Ridge?

A

Mid-Oceanic Ridge

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14
Q

What do you call a space found between highlands and/or mountain ranges?

A

Rift Valley

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15
Q

What is an example of Rift Valley?

A

East African Rift Valley

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16
Q

What do you call the two or more small segments found in single landmass?

A

Continental Rifts

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17
Q

What is an example of Continental Rifts?

A

Iceland

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18
Q

What is formed when two plates collide?

A

Convergent Plate Boundary

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19
Q

How is convergent plate boundary possible?

A

because of the subduction zone

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20
Q

What do you call when oceanic plate descends in the mantle under the second plate (either continental plate or oceanic plate)?

A

Subduction Zone

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21
Q

What are the 3 types of convergent plate boundaries?

A
  • Oceanic-Continental
  • Oceanic-Oceanic
  • Continental-Continental
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22
Q

Subduction of oceanic plate under continental plate and sinks into asthenosphere

A

Oceanic-Continental

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23
Q

What does Oceanic-Continental form?

A

Continental Volcanic Arcs

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24
Q

What are some examples of plates that converge to one another?

A

Nazca and South American Plates

25
Q

What are the examples of Oceanic-Continental?

A
  • Andres
  • Cascades
  • Sierra Mountain
26
Q

What do you call when 2 oceanic plates converge in which one descend beneath the other?

A

Oceanic-Oceanic

27
Q

What does Oceanic-Oceanic form?

A

Volcanoes on Ocean Floor

28
Q

What does Oceanic-Oceanic lead to?

A

Earthquakes and Tsunamis

29
Q

What are examples of Oceanic-Oceanic?

A
  • Aleutian
  • Mariana
  • Tonga
30
Q

What do you call the collision of 2 continental plates and one subducts the other

A

Continental-Continental

31
Q

What does Continental-Continental create?

A

Mountain Ranges and possible shallow Earthquake Activities

32
Q

What are some examples of plates that collide?

A

North American and Pacific Plates

33
Q

What is an example of Continental-Continental?

A

Himalayas

34
Q

Two plates slide past parallel to each other

A

Transform Fault Boundary

35
Q

What does transform fault boundary lead to?

A

Formation of Earthquakes

36
Q

What is an examples of Transform Fault Boundary?

A

San Andreas Fault

37
Q

What are the 4 Evidences of Plate Tectonics Theory?

A
  • Convection Current
  • Slab-Pull
  • Ridge-Push
  • Mantle Plumes
38
Q

What is the driving force for plate movement in which motion of matter results from changes in temperature?

A

Convection Current

39
Q

What is the mechanism that oceanic plate sinks and pulls lithosphere along?

A

Slab-Pull

40
Q

What do you call the influence of gravity that pulls oceanic plates to slide down?

A

Ridge-Push

41
Q

What do you call the hot materials ascending toward the surface?

A

Mantle Plumes

42
Q

What causes change in temperature that make plates move?

A

unequal distribution of heat underneath

43
Q

Continental drift theory is proposed by?

A

Alfred Wegener

44
Q

Who proposed a hypothesis?

A

Alfred Wegener

45
Q

Continents formed single supercontinent called Pangaea

A

Continental Drift Theory

46
Q

What does Pangaea mean?

A

all land

47
Q

What began to break apart 200 million years ago?

A

Pangaea

48
Q

Continents fit together like pieces of jigsaw puzzle

A

Fit of Continental Shorelines

49
Q

Scratches in surfaces of continents indicate existence of glaciers

A

Distribution of Glacial Sediments

50
Q

Rocks underwent climatic regime

A

Paleoclimate

51
Q

Similar fossils found in several continents

A

Distribution of Fossils

52
Q

Similar types, age, and sequence of layers of rocks

A

Distribution of Rocks

53
Q

How many evidences of continental drift theory are there?

A

5

54
Q

What are the 5 evidences of continental drift theory?

A
  • Fit of Continental Shorelines
  • Distribution of Glacial Sediments
  • Paleoclimate
  • Distribution of Fossils
  • Distribution of Rocks
55
Q

What are some examples of Fit of Continental Shorelines

A
  • East Coast of South America
  • West Coast of Africa
56
Q

What is the strongest evidence of continental drift theory?

A

Distribution of Fossils

57
Q

What is an example of similar fossils found in several continents?

A

Lystrosaurus

58
Q

What is the major problems of continental drift theory?

A

Alfred Wegener didn’t give explanation how continents drifted away

Reviewer (12 decks)

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