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Troposphere
The lowest layer of Earth's atmosphere, where weather phenomena like rain, snow, and storms occur.
Atmospheric Boundary
The transitional layer of the atmosphere closest to the Earth's surface where the majority of weather phenomena take place.
Weather Balloon
A balloon that carries instruments aloft to send back information on atmospheric pressure, temperature, humidity, and wind speed at different altitudes.
Tropopause
The boundary in the Earth's atmosphere between the troposphere and the stratosphere, where temperature begins to increase with altitude.
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