Exam 20: Atmospheric Effects

During the approach of a severe thunderstorm, workers on a project see lightning and then hear the resulting thunder 55 s later. Approximately how far away, in miles, is the storm?

When air is cooled below its dew point without condensation, it is said to be ______________.

The major source of NOx pollution is

An air mass derives its characteristics from its

Smog is a mixture of smoke and

Rain drops that freeze prior to striking the warm ground is a(n) ______________ storm.

When the dew point is below 0°C, which of the following is likely to form?

A tropical storm becomes a hurricane when its wind speed reaches

Lightning between a cloud and the surrounding air is called ______________.

When a cold front advances under a warm front, this results in a(n)

The low-pressure center of a hurricane is called the ______________.

A natural agent of chemical weathering that is enhanced by CO₂ pollution is ______________.

An air mass forming over the Gulf of Mexico would be classified as ______________.

In the Bergeron process, condensation occurs on

El Niño

The boundary between two air masses is called a

Atmospheric sulfur pollution gives rise to

A product of incomplete combustion that is a major air pollutant is

A tornado ______________ is issued when a tornado has been sighted or indicated on radar.

For water droplets to form, what must be present?