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53 Cards in this Set
- Front
- Back
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Oxygen was introduced into the atmosphere as a byproduct of...
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Photosythesis.
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As the electrical energy of lightning is discharged into the air...
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The air heats and expands rapidly.
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Greenhouse gases are added to the atmosphere through...
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Forest fires.
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The leading edge of a cold airi mass that overtakes a region formerly occupied by a warm air mass is called a...
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Cold Front.
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Of all the atmosphereic layers, the troposphere has the...
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Highest desnity.
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With the input of solar energy, water changes from a liquid to a gas during the process of...
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Evaporation.
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Ozone melecules are destroyed by...
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Chlorofluorocarbons.
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A waste product of resperation in animals that is used by plants to carry out photosynthesis is...
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Carbon dioxide.
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The only atmospheric layer containing measurable amounts of water is the...
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Troposphere
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High winds and strong thunderstorms are charcteristics of an approaching strong...
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Cold front.
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The region where warm and cold air masses meet is called a...
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Front.
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The energy that powers a hurricane is derived from...
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Condensation of water vapor.
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Unlike climate, weather...
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Changes from day to day.
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Condensation and the formation of cumulus clouds begins as the rising air reaches its...
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Dew point.
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Due to the Coriolis effect, the winds in the Northern Hemisphere...
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Curve clockwise.
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The boundary between the troposphere and stratosphere is called the...
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Tropopause.
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Weather variables such as wind speed, cloud cover, precipitation are indicated on weather maps by...
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Symbols
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Warm air rises because of its...
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Low Density.
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A cloud type that usually produces precipitation is an...
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Nimbostratus
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Plants contribute large volumes of atmosphereic water vapor to the air through the process of...
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Tranpiration.
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Sheet shaped clouds are called...
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Stratus.
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The climate of a region is defined by which two variables...
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Temperature and Moisture.
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The direction in which the wind is influenced by...
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Earths rotation, the pressure gradient.
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The general geographic location of a large low-pressure system is...
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The tropics.
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The clouds that occur at the highest altitude are usually...
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Cirrus.
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The region where electrically charged ions are formed as a result of the absorption of solar energy is called the...
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Ionosphere.
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Air becomes wind as it flows from...
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High pressure to low pressure.
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In a high-pressure system...
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Air molecules are close together and pressing on Earth's surface.
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In the oxygen--carbon dioxide cycle...
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Animals produce carbon dioxide used by plants for photosynthesis.
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On a weather map, winds blow slightly across isobars...
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Toward low-pressure centers.
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As tempurature increses, the possible total humidity...
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Increases.
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The coldest layer of earth's atmosphere is the...
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Thermosphere.
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As distance from Earth's surface increases, the tempurature of the stratosphere...
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Increases.
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The ozone layer is located in the...
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Stratosphere.
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Tornadoes comonly occur in this region of the United States...
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Midwest.
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Warm, moist air will have...
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High humidity and high dew point.
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Historically, global climate...
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Has varied greatly over time.
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Almost all weather occurs in the...
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Troposphere.
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Which gas was not believed to be present on Earth at the time of its formation 4.4 billion years ago?
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Oxygen.
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Our galaxy is classified as a...
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Spiral Galaxy.
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Beside the sun and the moon, what is the brightest object in the sky?
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Venus.
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All stars...
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Produce their own light.
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The most widely accepted model of the formation of the solar system is the...
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Nebular model.
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An observation of the red shift of galaxies suggest that the universe is...
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Expanding.
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Kepler showed that the orbits of the planets are...
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Elliptical.
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Which of the planets does not have rings?
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Mars.
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A light-year is...
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A unit of distance.
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Who first proposed that the universe is expanding?
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Hubble.
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The Milky Way galaxy contains interstellar matter that may...
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Form new stars.
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Supergiant star...
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Form supernovas.
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Energy is released in stars as a result of...
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Fusion reactions.
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Nearly 90% of all atars are at what point of their life cycles?
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Mid-life.
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Planets may have formes out of material orbiting the early sun through the process of...
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Accretion.
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