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Year 7 Geography > Tectonic hazards > Flashcards

Tectonic hazards Flashcards

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1
Q

What is the temperature of the crust?

A

Depends where in the world

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2
Q

What is the crust made from?

A

Solid rock

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3
Q

What is the thickness of the crust?

A

0-60km thick

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4
Q

What is the temperature of the mantle?

A

500-900 degrees celsius

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5
Q

What is the mantle made from?

A

Magnesium and iron

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6
Q

What is the temperature of the outer core?

A

4400 degrees celsius

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7
Q

What is the outer core made form?

A

Iron and nickle

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8
Q

What is the thickness of the mantle?

A

2900km thick

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9
Q

What is the thickness of the outer core?

A

2200km thick

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10
Q

What is the temperature of the inner core?

A

About 5430 degrees celsius

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11
Q

What is the inner core made from?

A

Iron and nickle

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12
Q

What is the thickness of the inner core?

A

1220km thick

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13
Q

What is continental crust?

A

Continental crust is mainly granite, and is thicker and less dense than the oceanic crust.

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14
Q

How thick is continental crust?

A

25-100km thick

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15
Q

What is oceanic crust?

A

Oceanic crust is made of basalt. It is heavier than continental crust.

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16
Q

How thick is oceanic crust?

A

Oceanic crust is between 5-10km thick.

17
Q

What do the crust and upper mantle form?

A

The lithosphere

18
Q

How many plates are there?

A

13

Year 7 Geography (10 decks)

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