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Unit 2
Atmosphere
Question | Answer |
---|---|
A special mixture of gases around Earth | Atmosphere |
the warming of the surface and lower atmosphere of Earth that occurs when water vapor, carbon dioxide, and other gas absorb and reradiate thermal energy. | Greenhouse effect |
a layer of higher than average concentrations of ozone within the stratosphere. | Ozone layer |
the measure of the force with which air molecules push on a surface. | air pressure |
the uppermost layer of the atmosphere in which temperature increases as altitude increases. | Thermosphere |
an aurora that occurs in northern regions of the earth. Also called northern lights. | Aurora borealis |
the layer of the atmosphere between the stratosphere and the thermosphere in which temperatures decrease as altitude increases. | Mesosphere |
the layer of the atmosphere that is above the troposphere and in which temperature increases as altitude increases. | Stratosphere |
an increase in the average temperature of the earth's atmosphere, especially a sustained increase sufficient to cause climatic change. | global warming |
the upper mesosphere and the lower thermosphere where temperature rises and gas particles become electrically charged (ions). | Ionosphere |
a bright trail or streak of light that appears in the night sky when a meteoroid enters the Earth's atmosphere. | Meteor/Meteorite |
a space entirely devoid of matter. | vacuum |
the lower layer of the atmosphere, in which temperature decreases as altitude increases. Nearly all weather occurs in this layer closest to Earth. | Troposphere |