H & L and Fronts

If an air mass is rising, it must be

• cold and less dense
• cold and more dense
• warm and more dense
• warm and less dense

A cool and dry air mass is best described as...

• continental tropical
• continental polar
• maritime tropical
• maritime polar

The symbol on a weather map for a warm front is what?

• a line with triangles on it
• a line with circles on it
• a line with semi-circles on it

What type of front brings warm and humid weather to an area?

• cold front
• warm front
• stationary front
• occluded front

A cold air mass moves underneath a warm air mass causing the warm air to rise. This  event can best be identified as — 

• cold front
• warm front
• stationary front
• occluded front

This symbol represents what type of front?

• cold front
• warm front
• stationary front
• occluded front

The boundary that forms between two air masses when they meet is called a...

• front
• storm line
• squall line
• midaltitude

Low pressure will usually bring what kind of weather?

• Sunny
• Calm
• Stormy

What is the instrument called that measures air pressure?

• thermometer
• ruler
• yard stick
• barometer

A cyclone is associated with a _______ pressure system.

• high
• low