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57 Cards in this Set

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Streamers or bands of light appearing in the sky at night, especially in polar regions
aurora
An electrically charged atom
ion
The layer of the atmosphere above the mesosphere where temperatures are the highest in the atmosphere
thermosphere
The layer of the atmosphere nearest the Earth in which most weather changes occur
troposphere
The layer of the atmosphere just above the troposphere where the temperature remains fairly constant
stratosphere
Layer of atmosphere containing ions; above the stratosphere
ionosphere
Layer of the atmosphere just above the stratosphere
mesosphere
Form of oxygen having three atoms of oxygen to a molecule
ozone
Region in the upper stratosphere where ozone is concentrated
ozonosphere
For study, the Earth can be divided into three parts:
hydrosphere
atmosphere
lithosphere
The Earth's _______ retains the atmosphere from dissipating into space.
gravity
The two most abundant gases in our atmosphere are:
Oxygen
Nitrogen
Oxygen makes up about ____% of the atmosphere.
21
what gas is a major factor in causing storms?
water vapor
Ozone is formed from helium in the upper atmosphere.
false
The ozone layer acts as a protective shield from the effects of the sun's __________________.
ultraviolent radiation
The atmosphere layer in which most weather occurs is the ___________.
troposphere
The atmosphere extends up to an altitude of about _____.
200 miles
Half of the mass of the atmosphere is found below an altitude of 3 1/2 because the air is compressed by the mass of the overlying atmosphere
true
Even though you are getting closer to the sun as you ascend into the troposphere, why does the temperature drop?
the lower atmosphere is heated by the ground
As you fly up through the troposphere into the stratosphere, what would you expect?
temperature would stop decreasing
temperature would remain constant
The temperature of the mesosphere decreases with altitude because it is:
heated from below by the ozone layer
Gravity separates the layered gases in the thermosphere by their mass
true
How does the temperature of the gases in the thermosphere change?
it increases with altitude.
The atmospheric gases in the thermosphere are heated _____.
directly by the sun
The ionosphere is classified by its _____.
electrical properties
Atoms which lose electrons and become electrically charged are called
ions
What practical function is provided by the ionosphere?
permits worldwide radio communication
How does the ionosphere help radio transmission?
permits radio waves to travel around the Earth's circumference
As you climb through the thermosphere, the temperature:
increases
As you climb through the mesosphere, the temperature:
decreases
As you climb through the upper stratosphere, the temperature:
increases
As you climb through the lower stratosphere, the temperature:
is constant
As you climb through the troposphere, the temperature:
decreases
The temperature of a spacecraft orbiting in the thermosphere or ionosphere would result from the effect of the extremely hot gases of the upper atmosphere.
false
The sun provides the main source of energy for many of the phenomena that occur on Earth.
true
The total range of energy which reaches the Earth from the sun is called the solar spectrum
true
The range of cosmic rays through visible light are included in the short-wave radiation
true
What percentage of the total incoming radiation to the Earth is lost by reflection?
40
What percentage of the total incoming radiation to the Earth reaches the ground?
40
The heat which radiates outward from the Earth's surface is transformed into long-wave radiation
true
Long-wave radiation from the ground passes through the atmosphere without absorption.
false
the three components of the atmosphere that absorb the heat radiated from the ground.
water vapor
carbon dioxide
clouds
The Earth does not appear to be gaining or losing heat as a planet in space.
true
Transfer of heat energy around the Earth from uneven heating of its surface is accomplished by global air circulation patterns
true
A by-product of photosynthesis which is necessary for respiration is oxygen
true
A by-product of respiration which is necessary for photosynthesis is carbon dioxide
true
Exposure to excessive ultraviolet radiation can be harmful to your _____.
health
skin
body
Most ultraviolet radiation is absorbed by the ozone layer
true
X-rays are less dangerous to health than ultraviolet radiation.
false
he rapid reduction in life spans after Noah's flood may be due to _____.
reduction in shielding effects of the current atmosphere
a change in the properties of the atmosphere
increase in radiation after the flood
The amount of atmosphere around a planet will moderate its temperature.
true
The Earth's atmosphere provides protection from meteorite impacts by causing them to break up
true
The absence of meteorites within the Earth's rock layers indicates that _____.
the rocks formed rapidly
the rock strata are young
The total amount of carbon dioxide in the atmosphere is estimated to have decreased by 10 to 15 percent since 1900.
false
Air pollution may have a greater effect on health than on atmospheric temperature
true
The overall long-term effects of air pollution are not yet certain.
true