Weather Review

What is the amount of water vapor in the air called?

• air pressure

• precipitation

• dew point

• humidity

Which of these is measured as a percent using an instrument called a psychrometer?

• precipitation

• relative humidity

• dew point

• air pressure

Which term refers to the natural process in which water continually moves through oceans, land, and atmosphere?

• dew point

• relative humidity

• air pressure

• water cycle

What are large bodies of air with distinct temperatures and moisture characteristics?

• high-pressure systems

• low-pressure systems

• weather fronts

• air masses

Which of these form over land near the North Pole and contain cold, dry air?

• continental air masses

• arctic air masses

• polar air masses

• maritime air masses

A large body of circulating air with low pressure at its center and higher pressure outside of the system is called what?

• an air mass

• a low-pressure system

• a high-pressure system

• a continental polar ice mass

Which of these is a specialized type of radar that can detect precipitation as well as the movement of small particles?

• upper air report

• satellite

• Doppler radar

• isobar

Lines that connect all places on a map where pressure has the same value are called what?

• computer models

• radar

• satellite images

• isobars

Which of these refers to a package of weather instruments that measure atmospheric conditions?

• a radiosonde

• satellites

• Doppler radar

• isobars

The amount of water vapor present in the air compared to the maximum amount of water vapor the air could contain at that temperature is referred to as which of these?

• humidity

• precipitation

• relative humidity

• air pressure