Humidity and air masses

What is relative humidity a measure of?

• The amount of water vapor in the air compared to the total amount of water the air can hold

• The temperature at which condensation occurs

• The speed of wind in a given area

• The amount of rainfall in a specific region

What does it mean when the air is saturated?

• 100% humidity at that temperature

• 50% humidity at that temperature

• No humidity at that temperature

• 25% humidity at that temperature

What is the dew point?

• The temperature at which the air is saturated and condensation occurs

• The temperature at which the air is completely dry

• The temperature at which the air is warmest

• The temperature at which the air is coldest

What happens to humidity at cooler temperatures?

• Humidity decreases

• Humidity increases

• Humidity remains constant

• Humidity disappears completely

What happens to humidity at higher temperatures?

• Humidity increases

• Humidity decreases

• Humidity remains constant

• Humidity disappears completely

Which of the following is true about water vapor at cooler temperatures?

• It is able to condense into clouds

• It evaporates quickly

• It remains in gaseous form

• It turns into ice

Which of the following is true about water vapor at higher temperatures?

• It is unable to condense into clouds

• It condenses into clouds easily

• It turns into rain

• It freezes

What is the relationship between temperature and the motion of molecules in the air?

• Higher temperature = faster motion of molecules

• Higher temperature = slower motion of molecules

• Lower temperature = faster motion of molecules

• Temperature does not affect the motion of molecules

What does a higher temperature indicate about the air's ability to hold water vapor?

• The air can hold more water vapor

• The air can hold less water vapor

• The air cannot hold any water vapor

• The air's ability to hold water vapor is unchanged

What type of air mass is extremely cold and dry?

• Maritime Tropical (mT)

• Continental Arctic (cA)

• Continental Tropical (cT)

• Maritime Polar (mP)