Exam 4: Humidity, Condensation and Clouds

Dew is most likely to form on ____.

What happens to actual vapor pressure, saturation vapor pressure, and relative humidity when moist air is warmed?

As the air temperature increases, the air's capacity for water vapor ____.

Instructions: Choose one answer from each pair of selections. Water departments in many cities in the desert southwest encourage their customers to water lawns early in the day. This is because the relative humidity is at its HIGHEST | LOWEST value in the morning and the rate of evaporation from wet soil will be relatively low.

Why is it better to water your lawn in the early morning instead of the afternoon?

Instructions: Choose one answer from each pair of selections. The ten principle cloud forms are divided into four primary cloud groups. Each of the four groups is identified by the HEIGHT | APPEARANCE of the clouds.

Clouds can be accurately identified strictly on the basis of elevation.

The total mass of water vapor stored in the atmosphere represents about one ____ supply of the world's precipitation.

There are two primary types of weather satellites in use for viewing clouds. The first are geostationary satellites and the second are ____ satellites.

A baseball will travel slightly farther on a ____ day.

What are the two main ways in which fog usually forms? List and briefly explain four primary types of fog, and give an example of where each could be found.

A person describes his or her level of discomfort on a hot, muggy day as follows: "It's not so much the heat, it's the humidity." Explain the validity of this statement.

A low, lumpy cloud layer that appears in rows, patches or rounded masses would be classified ____.

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

Radiation fog forms when ____.

The production of dew is mainly the result of ____.

Polar air is often described as dry even though the relative humidity is high. This is because in polar regions, ____.

List the four major cloud groups. What differences might you expect to find in the clouds of each of these cloud categories?

The percentage of water vapor present in the air compared to that required for saturation is the ____.

Cirrus clouds are composed primarily of ____.