Weather Part 1

The barometric pressure was recorded on the digital device in millibars. What is the equivalent air pressure in inches of mercury

(Hg)?

• 29.59 in of Hg

• 29.60 in of Hg

• 29.62 in of Hg

• 29.65 in of Hg

Most ozone is found in a region of Earth’s atmosphere between 10 and 20 miles above Earth’s surface. This temperature zone of the atmosphere is known as the

• thermosphere

• mesosphere

• stratopsphere

• troposphere

Clouds are formed when moist, rising air

• expands and warms, and water evaporates

• expands and cools, and water vapor condenses

• contracts and cools, and water vapor condenses

• contracts and warms, and water evaporates

Which graph best shows the general relationship between air pressure and altitude?

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As altitude increases in the troposphere and stratosphere, the air temperature

• decreases in the troposphere and increases in the stratosphere

• decreases in both the troposphere and stratosphere

• increases in the troposphere and decreases in the stratosphere

• increases in both the troposphere and stratosphere

This instrument measures atmospheric

• Wind speed

• Wind direction

• Air temperature

• Air pressure

Which weather instrument is used to measure air temperatures recorded on a weather map?

• barometer

• psychrometer

• thermometer

• anemometer

The table below shows the air temperature and dewpoint at each of four locations, A, B, C, and D.

Based on these measurements, which location has the greatest chance of precipitation?

• A

• B

• C

• D

Which weather instrument is most useful in measuring relative humidity?

• barometer

• anemometer

• psychrometer

• wind vane

Which sequence of events affecting moist air within Earth’s atmosphere causes cloud formation?

• rising → expanding → cooling → condensation

• rising → contracting → warming → evaporation

• sinking → expanding → warming → condensation

• sinking → contracting → cooling → evaporation