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Exam 5: Condensation: Dew, Fog, and Clouds

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Question 21

Multiple Choice

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Radiation fog typically forms on ____.

A) clear, calm days
B) clear, windy days
C) clear, calm nights
D) clear, windy nights
E) any day and in any conditions

F) C) and D)
G) A) and B)

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Question 22

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Thick clouds of this type can be used to predict rain or snow within 12 to 24 hours because they often appear ahead of an advancing cyclonic storm.

A) Stratus
B) Nimbostratus
C) Cirrostratus
D) Stratocumulus
E) Altocumulus

F) A) and B)
G) D) and E)

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Question 23

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Suppose two ocean currents with different temperatures are flowing next to one another. If the wind blows perpendicular to the currents, we would expect to find ____.

A layer of dust or salt particles suspended above a region is called ____________________.

On a cold, winter morning, the most likely place for radiation fog to form is ____.

Condensation nuclei may be made up of salt from the ocean.

The dew point is the temperature at which ____.

Advection fog is often observed along the Pacific coast during summer, as westerly winds carry moist air toward the shore. The fog forms because the surface water near the coast is ____ the surface water farther offshore.

Cumulonimbus clouds are associated with more or less continuously falling rain or snow.

The fog that forms along the Pacific coastline of North America is mainly of which type?

Identify the positive and negative aspects of fog.

Satellite images provide detailed information on cloud ____________________ and ____________________.

As the air cools during the night, the relative humidity increases. When the relative humidity reaches about 75 percent, condensation may begin on the most active hygroscopic nuclei, producing a ____________________ haze .

Jet aircraft flying at high altitudes often produce a cirrus-like trail of condensed vapor called a condensation trail or ____________________.

When radiation fog "burns off," the fog tends to dissipate ____.

The most common form of high cloud, these are thin, wispy clouds blown by high winds into long streamers.

Wet haze restricts visibility more than dry haze.

Aside from cumulonimbus clouds that sometimes penetrate into the stratosphere, all clouds are observed in the lower atmosphere.

Which region of the United States is particularly prone to advection fog?

List the major height categories of clouds. What differences might you expect to find in clouds that form at these different levels?