The Atmophere

Question 1

What are air masses

Answer 1

An air mass is a body of air with its own temperature, pressure and humidity level

• they can change weather over places
• that is why some countries have mixed weather

Question 2

What are fronts

Answer 2

A boundary area where 2 different air masses meet

Question 3

Warm front

Answer 3

• Develops when warm air moves towards cold air
• the warm air rises up over the cold air
• as it rises it cools and condensation occur
• clouds are formed and this leads to rainfall

Question 4

Describe rainfall relief

Answer 4

Occurs when:

• Warm moist air moves in from the sea.
• It hits a mountain range ant the coast and is forced to rise.
• it cools as it rises.
• condensation occurs, clouds are formed and it starts to rain

Question 5

Describe how frontal rains fall occurs

Answer 5

Occurs when:

• warm and cold air masses meet at a front
• the warm air mass moves over the cold air mass
• it cools, clouds are formed and condensation takes place

Question 6

Describe how conventional rainfall occurs

Answer 6

Occurs when:

• the sun shines on the land and heats up the air above
• the heated air rises quickly
• as it rises, it cools and condensation occurs and it rains heavily

Question 7

Name a warm current

Answer 7

North Atlantic drift

Question 8

Name a cold current

Answer 8

Labrador current

Question 9

Depressions

Answer 9

Is an area of low atmospheric pressure

Question 10

Cyclones

Answer 10

Another name for depressions

Question 11

Anticyclones

Answer 11

Areas of high atmospheric pressure