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