Plate Tectonics

Question 1

What is the top layer and how deep

Answer 1

Crust 3 -70km deep

Question 2

What is the thickest layer and what’s in it

Answer 2

Mantle and there is molten rocks

Question 3

What does the inner and outer core have in them

Answer 3

Iron and nickel

Question 4

What is a plate

Answer 4

A plate is when the crust is split up into several large sections called playes

Question 5

What are the two types of plates

Answer 5

Oceanic and continental

Question 6

Describe continental plate

Answer 6

Thick plates that carry land masses , they are old and have granite

Question 7

Describe oceanic

Answer 7

Thinner plates that form ocean floors they are young and have basallt

Question 8

What is a convection current

Answer 8

Slow mov,ent of molten magma that causes plates to move

Question 9

What plate boundaries is split apart causing new land give example

Answer 9

Constructive Iceland is a constructive boundary

Question 10

What is destructive boundary give example

Answer 10

Oceanic plate is forced under continental plate causing it to be destroyed nazca and South American plate are converging

Question 11

What plate movement is when they slide past each other and exampl

Answer 11

Conservative the San Andreas fault is one

Question 12

What are fold mountains formed by and an example

Answer 12

A collision boundary where the two continental plates fold upwards the Himalayas are an example

Question 13

Where do earthquakes usually occur

Answer 13

Pacific ring of fire and the Atlantic ridge

Question 14

Where are volcanos usually

Answer 14

Edge of continents

Question 15

How do volcanos erupt

Answer 15

When pressure builds up in the magma chamber and released suddenly

Question 16

Shield volcano characteristics

Answer 16

Fast flowing lava and gently sloping sides

Question 17

Stratovolcanos characteristics

Answer 17

Conical thick lava and steep sides

Question 18

Benefits of volcanos

Answer 18

Tourism fertile land sulphur collection and geothermal energy

Question 19

Problems of volcanic eruption

Answer 19

Death
Animals and crops destroyed
Roads blocked
Rover blocked
Gas clouds

Question 20

How do earthquakes occur

Answer 20

When the pressure of the two plates build up until suddenly they slip causing an earthquake

Question 21

Short term effects of earthquakes pick 4

Answer 21

Death injury destroyed buildings and road blocks

Question 22

Long term effects of earthquake pick 4

Answer 22

Disease
People re housed
Refugee camps
Homeless

Question 23

How to predict earthquakes

Answer 23

Lasers can measure plate movement
Movement by plates can release gas
Water levels change
Seismometer

Question 24

How to prepare for earthquake

Answer 24

Earthquake resistant buildings
Emergency plans
Drills

Question 25

What is the focus

Answer 25

Where the earthquake originates from underground

Question 26

What is the epicentre

Answer 26

Directly above focus on surface

Question 27

How are tsunamis caused

Answer 27

A earthquake on ocean floor or a land slide

Question 28

How to prepare tsunami

Answer 28

Build sea walls. Diversion channels Plant trees. Evacuation routes Raise roads and houses

Question 29

What is the north south divide

Answer 29

In the past people thought development was only about wealth causing the north and south divide

Question 30

Social Indicators of development

Answer 30

Birth rate , death rate, adult literacy, life expectancy, infant mortality

Question 31

Economic indicators of development

Answer 31

GDP and gnp per capita Number of cars per household Computers per 1000 people

Question 32

When did mt nyrigongo erupt

Answer 32

2002

Question 33

Was my nyrigongo warning signs ignored

Answer 33

Yes

Question 34

Where there preventative measures taken for mt nyrigongo eruption

Answer 34

No

Question 35

Effects of mt nyrigongo eruption

Answer 35

120,000 homeless People trying to get in Rwanda

Question 36

When was Christchurch earthquake

Answer 36

February 22nd 2011

Question 37

Where was Christchurch earthquake

Answer 37

Christchurch New Zealand

Question 38

What magnitude was Christchurch

Answer 38

6,3

Question 39

How many dead at Christchurch

Answer 39

Over 100