In an atmospheric convection current, cool air ____ and warm air ____.

• sinks, sinks
• rises, sinks
• sinks, rises
• rises, rises

Where have the fastest winds on Earth been recorded?

• In a jet stream

• In a tornado
• In a hurricane
• In the prevailing westerlies

What type of front is being shown?

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

What is the potential risk associated with the front shown?

• flooding due to several days of rain
• thunderstorms and high winds briefly
• light drizzle for a day or two
• heavy snow for a week

What will happen to a hurricane if it crosses into cooler water or moves onto land?

• It will strengthen and destroy everything in its path.
• It will cause damage to coastal areas but eventually lose strength.
• It will change direction and head south.
• All of these could happen.

What properties describe cold air?

• high density, high pressure
• low density, high pressure
• high density, low pressure
• low density, low pressure

What air mass is forming at point F in the map?

• cP
• cT
• mT
• mP

What air mass is forming at point A in the map?

• cP
• cT
• mT
• mP

What type of air will the air mass shown at point E bring?

• warm and humid air
• warm and dry air
• cold and humid air
• cold and dry air

At about what speed do winds need to be in order for a tropical storm to be classified as a hurricane?

• 25 km/hr

• 300 km/hr
• 120 km/hr
• 1,000 km/hr