Topic 1-Hazardous Earth

Question 1

Low air pressure

Answer 1

Unstable, rain, cool condense cloud (CCC), rising air.

Question 2

High air pressure

Answer 2

Stable, air sinking, no rain, blue skies

Question 3

During Global atmospheric circulation what drives global circulation with intense heating

Answer 3

The equator

Question 4

What type of air rises from the equator

Answer 4

Hot air, it’s less dense

Question 5

What happens at 30° N and S

Answer 5

The air sinks causing high air pressure

Question 6

What happens during the Coriolis effect

Answer 6

It causes trade winds to curve and it effects the rotation of the earth.

Question 7

What happens to air at the poles?

Answer 7

The air sinks because it’s cold (low air pressure)

Question 8

What type of air pressure is it at 60° N

Answer 8

Low Air pressure

Question 9

ITCZ stands for

Answer 9

Inter tropical convergence zone

Question 10

What does the ITCZ do?

Answer 10

Migrate north in summer and south in winter. It brings areas North and South of the equator a rainy season, when it migrates away it becomes a dry season.

Question 11

If the ITCZ was in the south it would bring?

Answer 11

Cloudy, bad weather due to the low pressure.

Question 12

What do ocean currents do?

Answer 12

Transfer heat around the globe.

Question 13

What are ocean currents powered by?

Answer 13

Some by winds, others by density differences due to differences in the water temperature

Question 14

What does the Gulf Stream bring to the UK

Answer 14

It brings warmth, this is why we have mild winters.

Question 15

Jet-streams are?

Answer 15

Very strong winds, in the high part of the atmosphere

Question 16

What meets what to cause jet-streams?

Answer 16

Cold air meets warm air

Question 17

Why are jet-streams strongest in winter?

Answer 17

The contrast between the hot and cold air.

Question 18

What do jet-streams bring to the UK?

Answer 18

Low pressure systems

Question 19

Fluctuated means?

Answer 19

Rise and fall irregularly in number of amount

Question 20

The higher the temperature, the more ? do you get

Answer 20

C02

Question 21

What happens to the atmosphere if there is too much CO2?

Answer 21

It creates a screen, keeping the suns heat in, heating up the earth.

Question 22

Eruption changes the earths climate by?

Answer 22

When it erupts it produces ash and sulphur dioxide. If it rises enough into the atmosphere it can change the earths temperature

Question 23

What would happen if an asteroid hit the earth?

Answer 23

Millions of tonnes of ash and dust would go into the atmosphere and it would cool the earth and the sun may be blocked from coming in.

Question 24

What are sunspots?

Answer 24

Black areas on the suns surface. The more dots = the more active the sun is = more solar energy being fired out towards earth

Question 25

What does the changing of the orbit create periods of?

Answer 25

It changes the amount of sunlight the earth receives, causing glacials and interglacials.