1. 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 arRead more

    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.

     

    For more NCERT Solutions for Class 7 Social Science Chapter 2 Understanding the Weather Questions & Answer:

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  2. Many seeds, such as those from cotton or dandelions, are light and have special structures that help them float in the wind. This wind dispersal helps them travel far from the parent plant, reducing competition. If there were no wind, these seeds would drop nearby, causing overcrowding and limitingRead more

    Many seeds, such as those from cotton or dandelions, are light and have special structures that help them float in the wind. This wind dispersal helps them travel far from the parent plant, reducing competition. If there were no wind, these seeds would drop nearby, causing overcrowding and limiting space, sunlight and nutrients. Dispersal by wind is essential for spreading plant species and supporting biodiversity. It ensures plants grow in different areas, supporting forest and grassland expansion.

     

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  3. A wind sock is a fabric tube shaped like a cone and used to indicate wind direction and relative strength. It is often seen at airports, on runways and in industrial areas. When the wind blows, the sock points away from the wind’s origin, allowing observers to determine the direction. The stronger tRead more

    A wind sock is a fabric tube shaped like a cone and used to indicate wind direction and relative strength. It is often seen at airports, on runways and in industrial areas. When the wind blows, the sock points away from the wind’s origin, allowing observers to determine the direction. The stronger the wind, the straighter the sock stands. Wind socks are crucial for aviation, ensuring pilots know wind conditions before takeoff and landing.

     

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  4. An anemometer is a device used to measure wind speed. It typically consists of three or four small cups mounted on arms that spin around a central shaft. When the wind blows, it causes the cups to rotate. The speed of rotation is converted into wind speed, often displayed in kilometers per hour. AneRead more

    An anemometer is a device used to measure wind speed. It typically consists of three or four small cups mounted on arms that spin around a central shaft. When the wind blows, it causes the cups to rotate. The speed of rotation is converted into wind speed, often displayed in kilometers per hour. Anemometers are essential tools in weather stations, used by meteorologists, pilots, sailors and farmers to track wind behavior and forecast weather changes accurately.

     

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  5. Kochi likely has higher humidity than Jaipur since it’s a coastal city. Jaipur, being inland, is drier. To confirm this, we can use hygrometers to measure relative humidity at both places. To compare Kochi and Mangaluru, we would measure humidity levels regularly at both cities and compare the data.Read more

    Kochi likely has higher humidity than Jaipur since it’s a coastal city. Jaipur, being inland, is drier. To confirm this, we can use hygrometers to measure relative humidity at both places. To compare Kochi and Mangaluru, we would measure humidity levels regularly at both cities and compare the data. Consistent readings over days or weeks help us determine which city has more water vapor in the air, affecting comfort, drying of clothes and sweating.

     

    For more NCERT Solutions for Class 7 Social Science Chapter 2 Understanding the Weather Questions & Answer:

    https://www.tiwariacademy.com/ncert-solutions/class-7/social-science/

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