Sciene test Flashcards

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1
Q

what type of plate boundary is shown <- ->

A

Divergent plate boundary

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2
Q

describe the force that is causing the plates to move as shown by the arrows

A

plates move away

gravity pulls back

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3
Q

where would be the hottest oceanic crust

A

mid ocean ridge

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4
Q

many california earthquakes are caused by

A

two plates sliding past one another

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5
Q

provides evidence that a giant landmass existed near the equator about 25o million years ago

A

glossopteris

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6
Q
A
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7
Q

what type of plate boundary is shown <- ->

A

divergent plate boundary

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8
Q

describe the force that is causing the plates to move as shown by the arrows

A

plates move away

gravity pulls back

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9
Q

where would be the hottest oceanic crust

A

mid ocean ridge

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10
Q

many California earthquakes are caused by

A

two plates sliding past one another

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11
Q

provides evidence that a giant landmass existed near the equator about 250 million years ago

A

glossopteris

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12
Q

a subduction zone is located at a _______ plate boundary

A

convergent

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13
Q

is a force that occurs at a convergent plate boundary

A

slab pull

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14
Q

in the asthenosphere is thought to be the driving forces of plate movements

A

convection

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15
Q

differences in temperature of oceanic crust support

A

seafloor spreading, plate tectonics

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16
Q

most mountains on earths continents formed along ____ plate boundaries

A

convergents

17
Q

the theory of ________ states is that earths surface is made of plates that move in respect to each other

A

plate tectonics

18
Q

Wagener proposed that all continents were once part of supercontinent

A

pangea

19
Q

the idea of _______ provides a mechanism to explain how continents move

A

seafloor spreading

20
Q

the shape of continental coastlines were one of the main pieces of evidence -

A

continental drift

21
Q

in divergent plate boundary

A

two plates seperate