geography tectonic hazards

Question 1

what is the crust made from

Answer 1

solid rock

Question 2

what is the mantle made from

Answer 2

mainly magnesium and some iron

Question 3

what is the outer core made from

Answer 3

a liquid layer made of Iron and nickel

Question 4

what is the inner core made from

Answer 4

a solid layer made of Iron and nickel

Question 5

how thick is the crust

Answer 5

0 - 60 km thick

Question 6

how thick is the mantle

Answer 6

2900 km thick

Question 7

how thick is the outer core

Answer 7

2200 km thick

Question 8

how thick is the inner core

Answer 8

1220 km thick

Question 9

temperature of the mantle

Answer 9

500 - 900 °C

Question 10

temperature of the outer core

Answer 10

4400 °C

Question 11

temperature of the inner core

Answer 11

5430 °C

Question 12

what is continental crust made from

Answer 12

mainly granite

Question 13

what is the oceanic made from

Answer 13

mainly basalt

Question 14

how thick is the oceanic crust

Answer 14

5 - 10 km thick

Question 15

how thick is the continental crust

Answer 15

25 - 100 km thick

Question 16

upper mantle state

Answer 16

solid

Question 17

lower mantle state

Answer 17

soft and plastic - can flow

Question 18

extinct volcano

Answer 18

highly unlikely to erupt again

Question 19

dormant volcano

Answer 19

hasn’t erupted for 2000 years but could erupt again

Question 20

active volcano

Answer 20

erupted recently likely to erupt again