4.3 What Influences Weather

How does an air mass form?

• When the air does not move for a long time
• When it is over water
• When it is over a desert
• When the air moves quickly

If the air is coming from the desert, what will it feel like?

• hot and dry
• hot a moist
• cold and dry
• cold and moist

warm front is ______, cold front is ______.

• less dense, more dense
• more dense, less dense
• colder, warmer

Which type of front... Warm air follows cold air and slowly moves on top.

• warm front
• cold front
• stationary front

Which type of front... Cold air goes under warm air, pushing up the warm air rapidly

• warm front
• cold front
• stationary front

An air mass is a large area of air that has the same

• temperature and humidity 
• density and temperature
• volume and humidity
• area and temperature

Which type of front... weather does not change

• warm front
• cold front
• stationary front

Which type of front... produces heavy rain and snow, ends with cold air

• warm front
• cold front
• stationary front

Which type of front... produces drizzly rain, ends with warm and humid air.

• warm front
• cold front
• stationary front

Which type of front... there is not enough wind to push the warm air over the cold air

• warm front
• cold front
• stationary front