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WX 201 Exam 1 || 100% Verified Solutions.

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WX 201 Exam 1 || 100% Verified Solutions.


Meteorology is the study of: correct answers The Atmosphere


Weather describes the conditions averaged over a region or over a period, whereas climate
describes the condition of the atmosphere at a particular time and place. correct answers False


In ____ near Earth's surface today, nitrogen occupies 78 percent and oxygen nearly 21 percent.
correct answers The volume of air


Atmospheric concentration of helium has increased from below 300 ppm historically to over 400
ppm presently. correct answers False


In which atmospheric layer is most of the ionosphere found? correct answers Thermosphere


The region where atoms and molecules shoot off into space is sometimes referred to as the
exosphere, which represents the upper limit of our atmosphere. correct answers True


Precipitation is correct answers Any form of water that falls from clouds and reaches the ground.


Meteorology is the study of the atmosphere and its phenomena. The term itself goes back to the
Greek philosopher, Aristotle, who wrote a book on natural philosophy entitled Meteorologica.
correct answers True


Most human-made impurities found in the atmosphere present a health and environmental
hazard. These are called ____. correct answers Pollutants


Which of the following is considered a variable gas in Earth's atmosphere? correct answers
Water Vapor

,Carbon dioxide is a naturally occurring component of the atmosphere. correct answers True


The atmospheric concentration of CO2 has risen by about ____ since 1958, when measurements
began at Mauna Loa Observatory in Hawaii. correct answers about 30%


Of the four most abundant gases in our atmosphere, carbon dioxide shows the greatest variation
at Earth's surface. correct answers False


The two most abundant greenhouse gases in Earth's atmosphere are carbon dioxide and water
vapor. correct answers True


Water vapor can best be described as a ____. correct answers Gas


A geostationary satellite takes pictures of ____. correct answers One area on earth as it moves at
the same rate as earth's spin


Our understanding of the atmosphere and how it produces weather is built on the knowledge
acquired and applied through the scientific method. correct answers True


Almost all of Earth's weather occurs in the ____. correct answers Troposphere


The region where atoms and molecules shoot off into space is sometimes referred to as the
exosphere, which represents the upper limit of our atmosphere. correct answers True


A constant outpouring of gases from the hot interior—known as ____—provided a rich supply of
water vapor, which formed into clouds. correct answers Outgassing


The ozone hole is an actual hole in the atmosphere, a region of complete vacuum. correct
answers False

, The word "weather" is defined as ____. correct answers The condition of the atmosphere at a
particular time and place.


In a warm front, what is being replaced? correct answers Cool Air


The temperature of the tropopause ____. correct answers Is much colder than the temperature at
earth's surface.


Wind direction is ____. correct answers The direction from which the wind is blowing.


Ozone (O3) in the stratosphere has ____. correct answers Protected life from harmful ultraviolet
rays.


Which weather element always decreases as we climb upward in the atmosphere? correct
answers pressure


The most abundant gas in the stratosphere is ____. correct answers Nitrogen (N2)


Which process, over millions of years, provided a rich supply of water vapor into the atmosphere
that formed into clouds? correct answers outgassing


Which process acts to remove carbon dioxide from the atmosphere? correct answers
Photosynthesis


The majority of ____ on our planet is believed to have come from its hot interior through
outgassing, although some of Earth's water may have come from collisions with meteors and
comets. correct answers Water


In the isothermal zone of the atmosphere, the air temperature, on an average, remains constant
with height. correct answers True

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