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JCCC EVFN 124 Exam Questions with Complete Answers

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JCCC EVFN 124 Exam Questions with Complete Answers

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  • November 5, 2024
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JCCC EVFN 124 Exam Questions with
Complete Answers
The turbulent layer of Earth's atmosphere in which nearly all weather occurs is called
the ____. - Answer-Troposphere

Weather may be defined as ____. - Answer-Short-term, localized states of the
atmosphere

The long-term statistical sum of weather in a geographic region is called ____. -
Answer-Climate

The volume of gases, water vapor, and airborne particles that envelops Earth is the
____. - Answer-Atmosphere

Which of the following statements is true with regard to air? - Answer-Warm air is less
dense than cold air.

Warm air ____ and cool air ____. - Answer-Expands and rises; contracts and sinks

The most abundant gaseous components of Earth's atmosphere are ____. - Answer-
Nitrogen and oxygen

Seasons are caused by ____ - Answer-Earth's orbital tilt relative to the plane of its orbit
around the sun

One of the driving forces of atmospheric circulation is ____. - Answer-Earth's uneven
solar heating

Which statement is true regarding the solar heating of Earth? - Answer-At the equator,
more incoming solar radiation is absorbed than is reflected.

Sunlight strikes polar latitudes at a ____ angle, spreading the incoming heat over a
large area. - Answer-Low

In the world model of atmospheric circulation, the ____ cells are located nearest to the
equator. - Answer-Hadley

The Coriolis effect causes objects moving in the northern hemisphere to veer off course
____. - Answer-To the right, or clockwise when viewed from above

The atmospheric circulation cells that operate in the mid-latitudes are called ____ cells.
- Answer-Ferrel

, According to the atmospheric circulation model developed in the text, air tends to ____.
- Answer-Rise at 60° north and fall at 30° north

There are ____ major atmospheric circulation cells in each hemisphere of Earth. -
Answer-Three

Calm equatorial areas of low pressure are referred to as the ____. - Answer-Doldrums

The dependable surface winds of Earth centered at about 15° north and south latitudes
are called the ____. - Answer-Trade winds

A ____ is a pattern of wind circulation that changes with the seasons and generally
results in wet summers and dry winters in parts of Africa and Asia. - Answer-Monsoon

The boundary between two air masses of different densities is called a ____. - Answer-
Front

The power for tropical cyclones comes from ____. - Answer-The condensation of warm,
moist air

Extratropical cyclones typically form ____. - Answer-At high latitudes, at the junction
between the polar cells and the Ferrel cells

Which of the following conditions contributed most to the destructive nature of Hurricane
Katrina? - Answer-Very strong winds, up to 125 miles per hour

The uneven heating of the surface of Earth results in atmospheric convection currents. -
Answer-True

Due to the Coriolis effect, objects are deflected to the right or clockwise in the Northern
Hemisphere. - Answer-True

The most intense summer monsoons occur in Asia. - Answer-True

Cyclonic storms can form within or between air masses (a large body of air with a
uniform density throughout). - Answer-True

Tropical cyclones are most common in the equatorial South Atlantic. - Answer-False

Superstorm Sandy was the result of a collision between a nor'easter and an
extratropical cyclone. - Answer-False

The mass flow of ocean water that is driven by wind or gravity is referred to as ocean
____. - Answer-Currents

The primary force responsible for surface currents is ____. - Answer-Wind

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