Meteorology Today, Chapter 1

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Workbook and Study Guide to the eighth Edition of Meterorology Today

Weather element that always decrease with increasing height


The most abundant greenhouse gas in the earth's atmosphere.

water vapor

Layer of the atmosphere that contains almost all the weather


The outpouring of gases from the earth's hot interior.


Gas that strongly absorbs ultraviolet (UV) radiation in the stratosphere.


The average decrease in air temperature with increasing height above the surface.

lapse rate

A measured increase in air temperature with increasing height.


The electrified region of the upper atmosphere.


The study of the atmosphere and its phenomena.


A storm of tropical origin with winds in excess of 64 knots (74 mi/hr)


The horizontal movement of air


A relatively small, rotating funnel that extends downward from the base of a thunderstorm.


It holds a planet's atmosphere close to its surface.


On a weather map, this zone marks sharp changes in temperature, humidity, and wind direction.


A towering cloud (or cluster of clouds) accompanied by thunder, lightning, and strong gusty winds.


A condition caused by a lack of oxygen to the brain.


The gas that shows the most variation from place to place and from time to time in the lower atmosphere is _____ _____.

water vapor

What percent does each of the following gasses occupy in a volume of air near the earth's surface?
water vapor_____%
carbon dioxide_____%

nitrogen= 78%, oxygen = 21% water vapor = 0 to 4%, carbon dioxide = 0.037%

Most of the ozone in the atmosphere is found in the atmospheric layer called the _____.


Most of the earth's water is believed to have originally come from ______.

inside the earth

The hottest atmospheric layer is the _____.


The only substance near the earth's surface that is found naturally in the atmosphere as a solid, a liquid, and a gas is ______.


The atmospheric layer in which we live is called the _____.


The instrument that measures temperature, pressure, and humidity at levels above the earth's surface is the_____.


The mass of air in a given volume describes the air's _______


The atmospheric boundry that separates the troposphere from the stratosphere is _____.


The atmospheric layer that plays a role in radio communication is the_____.


The primary source of oxygen for the earth's atmosphere during the past half billion years of so appears to be:


Air density normally :

decreases with increasing height

The so-called "ozone hole" is observed above:

the continent of Antarctica

A force exerted on a unit areas describes air


The largest storm in our atmosphere, in terms of actual size (diameter) is the

middle latitude cyclonic storm

In the Northern Hemisphere, surface winds tend to blow this way around an area of surface low pressure.

counterclockwise and inward

Which planet has the strongest greenhouse effect?


The well-mixed region of the earth's atmosphere is known as the:


The planet whose atmosphere is mainly nitrogen and oxygen.


Over the last 100 years, the concentration CO2 in the earth's atmosphere has been increasing.


Chlorofluorocarbons enter the atmosphere mainly through the decay of vegetation.


The air temperature at the tropopause is warmer than the average air temperature measured at the earth's surface.


The two most abundant gases in the stratosphre are nitrogen and oxygen.


About half of all the molecules in our atmosphere are below an altitude of about 5.5 kilometers of 18,000 feet.


In the Northern Hemisphere, surface winds tend to blow clockwise and outward around an area of high pressure.


The atmosphere is compressible. This means that air pressure decreases at a constant rate from the surface to the top of the atmosphere.


The highest level of the ionosphere is called the D region.


In the middle latitudes a pressure of 500 millibars would normally be found at an altitude near 5500 meters or about 18,000 feet.


In the upper atmosphere, the mean free path of atoms and molecules decreases with increasing altitude.


A change in air density above an area can bring about a change in surface air pressure.


Another name for a middle latitude cyclonic storm is extratropical cyclone.


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