Questions and Answers
What is the temperature of the tropopause?
Which atmospheric layer contains the most mixing and overturning of air?
Air molecules are held near Earth by/through:
The gas that absorbs most of the harmful ultraviolet radiation in the stratosphere is:
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Typically, water vapor occupies about what percentage of the air's volume near Earth's surface?
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There are considerably more air molecules near Earth's surface than higher up, which means, in comparison, air near the surface:
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Wind direction is:
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Which weather element ALWAYS decreases as we climb upward in the atmosphere?
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Which of the following is considered a variable gas in Earth's atmosphere?
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Almost all of Earth's weather occurs in the:
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The rate at which temperature decreases with increasing altitude is known as the:
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At night, when the weather is extremely cold and dry, atmospheric pressure:
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In a volume of air near Earth's surface today, ____ occupies 78 percent and ____ nearly 21 percent.
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The only substance near Earth's surface that is found naturally in the current atmosphere as a solid, liquid, and a gas is:
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The atmospheric layer in which we live is called the:
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The horizontal transport of any atmospheric property by the wind is called:
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The heat energy released when water vapor changes to a liquid is called:
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The atmospheric greenhouse effect is produced mainly by the absorption and re-emission of:
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Study Notes
Temperature and Atmospheric Layers
- The temperature of the tropopause is significantly colder than at Earth's surface.
- The troposphere is the atmospheric layer with the most mixing and overturning of air.
- Air molecules are retained near Earth due to gravity.
Ozone and Atmospheric Composition
- Ozone in the stratosphere absorbs harmful ultraviolet radiation.
- Water vapor typically occupies less than 4% of the air's volume near Earth's surface.
- Near Earth's surface, the air is denser due to a higher concentration of air molecules.
Wind and Atmospheric Pressure
- Wind direction indicates the direction from which the wind is blowing, not where it is going.
- Atmospheric pressure consistently decreases with altitude.
Variable Gases and Weather
- Water vapor is classified as a variable gas in Earth's atmosphere.
- Almost all weather on Earth occurs in the troposphere.
Temperature Profiles and Lapse Rate
- The lapse rate defines the rate of temperature decrease with increasing altitude.
- At night, in cold and dry conditions, atmospheric pressure decreases with altitude.
Composition of Air
- In air at Earth’s surface, nitrogen comprises about 78% and oxygen about 21%.
- Water is the only substance that exists naturally as a solid, liquid, and gas in the current atmosphere.
Atmospheric Layers and Heat Transfer
- The troposphere is the atmospheric layer where humans reside.
- Advection refers to the horizontal transport of atmospheric properties by wind.
- The latent heat of condensation is the heat energy released when water vapor converts to liquid.
Greenhouse Effect
- The atmospheric greenhouse effect results mainly from the absorption and re-emission of infrared radiation by the atmosphere.
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Description
Test your knowledge with these WX 201 Exam 1 flashcards. Each card presents a key concept related to atmospheric science and weather patterns. Challenge yourself and reinforce your understanding of the tropopause and atmospheric layers.
