Global Hazards pt1-trs and droughts

Question 1

what is atmospheric circulation?

Answer 1

the large-scale movement of air by which heat is distributed on the surface of the Earth.

Question 2

what is the Hadley cell?

Answer 2

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

Question 3

what is the Ferrel cell?

Answer 3

Middle cell where air flows polewards.

Question 4

what is the polar cell?

Answer 4

Smallest & weakness cell that takes air from the poles to the Ferrel cell.

Question 5

what is a cell?

Answer 5

circular movements that take air from the equator and move it towards to poles

Question 6

where do droughts occur?

Answer 6

Drought can occur anywhere throughout the world but they are more frequent between the tropics of Cancer and Capricorn and are more serious there.

Question 7

what are the 3 main names of tropical revolving storms?

Answer 7

cyclones,hurricanes and typhoons

Question 8

what is needed to make a tropical revolving storm?

Answer 8

26.5°C, 60m deep and converging winds

Question 9

what speed is it classed as a trs?

Answer 9

74mph

Question 10

what is the centre of a storm called?

Answer 10

eye

Question 11

what are the 4 types of climates

Answer 11

temperate, tropical, polar, desert

Question 12

what causes high pressure?

Answer 12

cool air sinking. this can cause clear and calm weather

Question 13

what causes low pressure?

Answer 13

hot air rising. this can cause storms and cloudy weather

Question 14

what is wind?

Answer 14

wind is the movement of air from an area of high pressure to one of low pressure.

Question 15

what is the El Nino effect associated with?

Answer 15

dry conditions

Question 16

what are some managements for droughts?

Answer 16

ban hose pipes, encourage people to use less water, permits to collect water from rivers

Question 17

what are some managements for storms?

Answer 17

education on preparedness, build safer buildings

Question 18

what are the steps of precipitation?

Answer 18

1.water vapour is carried by warm air that rises.
2.as it gets higher, the air cools and the water vapour condenses to form a cloud.
3.as water molecule collide and become denser, the water will fall to earth as precipitation.

Question 19

how fast can jet streams go?

Answer 19

225km/h

Question 20

what are the 3 types of rainfall?

Answer 20

convectional, frontal, relief