What type of pressure is associated with cold air masses?

• Low
• Middle
• High

What causes wind?

• convection currents
• conduction currents
• radiation currents
• tropical currents

Where does the initial source of energy come from that creates winds?

• the moon
• the sun
• the Earth's surface
• the rotation of the Earth

What causes global winds and convection in the atmosphere? 

• continental deflection
• the rotation of the Earth
• Moon's gravity
• unequal heating of the Earth by the sun

How do differences in air pressure affect the movement of air?

• Air always moves from areas of high pressure to areas of low pressure.
• Air always moves from areas of low altitudes to high altitudes.
• Air always moves from areas of low pressure to areas of high pressure.
• Air always moves from east to west.

Which statement correctly describes the properties of cold air?

• less dense and less pressure than warm air
• more dense and more pressure than warm air
• more dense and less pressure than warm air
• less dense and more pressure than warm air

Why does warm air rise?

• Warm air is more dense than cooler air.
• Warm air has more pressure than cooler air.
• Warm air is less dense than cooler air.
• Warm air has a higher dew point than cooler air.

The sun transfers thermal energy to Earth through?

• Radiation
• Conduction
• Convection

Thermal energy transfers around the atmosphere through

• Radiation
• Conduction
• Convection

The equator is warmer than the poles because the Sun transfers thermal energy to the Earth...

• Unevenly...the equator is closer to the sun
• Unevenly...the equator gets more direct light
• Evenly