Geography Revision

Question 1

Describe the theory of what plates

are and why they move.

Answer 1

The Earth’s crust is broken into pieces called tectonic plates. Due to the convectional currents in Earth’s interior, these plates move.

Question 2

Describe the global distribution of
earthquakes and volcanic
eruptions and their relationship to
plate margins.

Answer 2

Earthquakes and volcanoes happen due to the movement of plates at the Plate Boundaries.

Question 3

Describe the different types of
plate margins (constructive,
destructive and conservative).

Answer 3

Constructive-Divergent: new crust is created
Destructive-Convergent: subduction to destroy old crust
Conservative: Crust neither created nor destroyed

Question 4

Explain the physical processes
taking place at different types of
plate margins (constructive,
destructive and conservative).

Answer 4

Constructive- plates pulled apart, new crust formed, Shield volcanoes
Destructive- One plate going under another, old crust destroyed, Fold mountains/trenches/volcanoes
Conservative- Plates rubbing against each other causing faults and earthquakes

Question 5

Explain why there are earthquakes
and volcanic activity at different
types of plate margins

Answer 5

Plates moving apart or one going under another or sliding past each other

Question 6

Describe and explain the primary

effects of a tectonic hazard.

Answer 6

Earthquakes and Volcanoes

Question 7

Describe and explain the primary

effects of a tectonic hazard.

Answer 7

Death, Tsunamis, and destruction

Ash and pollution, Death, and destruction

Question 8

Describe and explain the
immediate responses to a tectonic
hazard.

Answer 8

Stay indoors, Save some water, Take cover, close doors and windows, Keep calm.

Question 9

Describe and explain the long-term

responses to a tectonic hazard.

Answer 9

Improving buildings, preparing emergency plans, monitor events.

Question 10

Give named examples to explain
how the effects of a tectonic
hazard vary between two areas of
contrasting levels of wealth.

Answer 10

Effects are greater in LEDCs-poor shelter, no food, more damage

Question 11

Give named examples to explain
how the responses to a tectonic
hazard vary between two areas of
contrasting levels of wealth.

Answer 11

Quicker and more efficient for MEDCs- no need to wait for international aid

Question 12

Explain the reasons why people
continue to live in areas at risk
from a tectonic hazard.

Answer 12

People can live with volcanic soil for agriculture.

Buildings are improved to provide support from earthquakes.

Question 13

Explain how monitoring,
prediction, protection and
planning can reduce the risks from
a tectonic hazard.

Answer 13

Seismographs help us get notified when will the hazard happen.
Schools have earthquake drills to prepare for emergency.
Builders make sure that buildings don’t sway much during earthquakes.