Wind direction is measured using a wind vane, which points where the wind blows from. Wind speed is measured by an anemometer, which spins faster when wind is stronger. These instruments help pilots, sailors and meteorologists understand and predict weather changes.
Class 7 Social Science Chapter 2 Understanding the Weather question answer
Class 7 NCERT Social Science India and the World: Land and the People Chapter 2 Understanding the Weather
Wind direction is measured with a wind vane, which turns to show the direction the wind is coming from. A wind sock is also used at airports for visibility. Wind speed is measured using an anemometer, which has cups that rotate with the wind—the faster the spin, the stronger the wind. These tools are important for weather forecasts, aviation, sailing and farming. Pilots and sailors especially rely on this data to plan safe and efficient routes.
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