Water that is always moving between the surface of the Earth and the atmosphere is

• Evaporation

• Water Cycle

• Condensation

• Dew Point

What is a huge body of air in the lower atmosphere that has similar temperature, humidity and air pressure at any given height?

• Air Mass

• Air Front

• Air Pressure

What are the four major types of air masses influence the weather in North America?

• Maritime Tropical

• Continental Tropical

• Maritime Polar

• Continental Polar

What air masses form over the ocean and can be very humid?

• Continental

• Tropical

• Maritime

• Polar

What air masses form over land, and are drier than maritime air masses?

• Maritime

• Continental

• Tropical

• Polar

What air masses are warm, form in the tropics, and have low air pressure?

• Maritime

• Tropical

• Continental

• Polar

What air masses are cold, form near the poles, and have high air pressure?

• Maritime

• Continental

• Polar

• Tropical

How do air masses move?

• East to West

• North to South

• West to East

• South to North

What is a band of high-speed wind about 10 km above the surface of Earth that pushes air masses along?

• Air Masses

• Jet Stream

• Air Fronts

What occur along the boundaries between air masses?

• Weather

• Fronts

• Jet Streams