Natural Hazards KO

Question 1

The Crust

Answer 1

Varies in thickness (5-10km) beneath the ocean. Made up of several large plates.

Question 2

The Mantle

Answer 2

Widest layer (2900km thick). The heat and pressure causes the rock to be in a liquid state that is in a state of convection.

Question 3

The Inner and outer Core

Answer 3

Hottest section (5000 degrees). Mostly made of iron and nickel and is 4x denser than the crust. Inner section is solid whereas outer layer is liquid.

Question 4

The crust is divided into —————— which are moving due to ——————- in the mantle.

Answer 4

tectonic plates, convection currents

Question 5

Geological Hazard

Answer 5

These are hazards caused by land and tectonic processes.

Question 6

Meteorological Hazard

Answer 6

These are hazards caused by weather and climate.

Question 7

Step 1: Radioactive decay of ————— generate a lot of heat.

Answer 7

some of the elements in the core and mantle

Question 8

Step 2:When lower parts of the mantle molten rock (Magma) heat up they become ———————.

Answer 8

less dense and slowly rise.

Question 9

Step 3: As they move towards the ——- they cool down, become _____________

Answer 9

top, more dense and slowly sink.

Question 10

Step 4: These circular movements of ————- rock are _______

Answer 10

semi-molten, convection currents

Question 11

Step 5: Convection currents create …..

Answer 11

drag on the base of the tectonic plates and this causes them to move.

Question 12

Management of Tropical Storms:protection

Answer 12

Preparing for a tropical storm may involve construction projects that will improve protection.

Question 13

Management of Tropical Storms:aid

Answer 13

Aid involves assisting after the storm, commonly in LICs

Question 14

Management of Tropical Storms: Development

Answer 14

The scale of the impacts depends on the whether the country has the resources cope with the storm.

Question 15

Management of Tropical Storms: planning

Answer 15

involves getting people and the emergency services ready to deal with the impacts.

Question 16

Management of Tropical Storms: Prediction

Answer 16

Constant monitoring can help to give advanced warning of a tropical storm

Question 17

Management of Tropical Storms: Education

Answer 17

Teaching people about what to do in a tropical storm.

Question 18

Hadley cell

Answer 18

Largest cell which extends from the Equator to between 30° to 40° north & south.

Question 19

Ferrel cell

Answer 19

Middle cell where air flows poleward between 60° & 70° latitude.

Question 20

Polar cells

Answer 20

Smallest & weakness cell that occurs from the poles to the Ferrel cell.