Geography_Test 2

Question 1

Definition of natural hazard

Answer 1

• A naturally occurring event / process
• which has the potential to cause loss of life / damage property

Question 2

Definition of a natural disaster

Answer 2

• Major natural hazard event
• causes widespread disruption to a community/region
• the affected community is unable to deal with adequately without outside help

Question 3

Definition of earthquake

Answer 3

• sudden (violent) shaking of land

Question 4

How are the layers of Earth arranged?

Answer 4

• according to their density
• oceanic crust < continental crust < mantle < core
• layers with lighter, less dense minerals lie on the top

Question 5

Describe the core of the Earth

Answer 5

• mainly iron
• mixed with a little liquid
• inner core is solid

Question 6

Describe the mantle of the Earth

Answer 6

• forms 1/2 of the earth
• semi-molten
• top is hard rock, outer core melts

Question 7

Describe the crust of Earth

Answer 7

• thin skin of rock around the earth
• solid
• silica, magnesium