GCEGeographyWeather and Climate2020

A radiosonde is used in meteorology to

Ameasure the speed and direction of surface winds at weather stations
Brecord rainfall amounts in remote areas using radar technology
Ctransmit upper-atmosphere data on temperature, pressure, and humidity via radio signalsCORRECT
Ddetect the approach of tropical cyclones using satellite imagery
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Why the answer is C, and why the others tempt you.
A radiosonde is an instrument package attached to a weather balloon that ascends into the upper atmosphere. It measures and transmits data on temperature, atmospheric pressure, humidity, and wind speed at various altitudes back to ground stations via radio signals. It is distinct from radar systems and surface weather instruments.
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