alleryStart learning →A weather forecast uses changes in atmospheric pressure to
ACompute the salt content of the sea
BDetermine the elevation of any place
CFind the speed of the wind only
DPredict rain or fair weather
Answer & Solution
Correct answer: D. Predict rain or fair weather
1. Falling pressure signals approaching low-pressure systems and rain.
2. Rising pressure signals fair weather with high pressure.
3. Meteorologists watch barometers to forecast.
4. So option A is correct.
_Source: Selina Concise Physics Class 9, Ch 4 Pressure in Fluids and Atmospheric Pressure (Mistral OCR'd PDF), section on weather forecasting_
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