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प्रश्न
How is the weather forecast made? Why is weather forecast necessary?
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उत्तर
Weather forecasting is the application of science and technology to predict the state of the atmosphere for a given location. Nowadays it is made with the help of data gathered from weather satellites and radar systems. Forecasts help to plan what to wear when to travel or which products to stock in supermarkets. It’s especially important for farmers, builders, sailors, or anyone else who works outdoors.
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संबंधित प्रश्न
Write true or false. Correct the false statement.
A rise in temperature causes more condensation while a fall in temperature results in evaporation.
Fill in the blanks
The pressure difference causes horizontal movement of air called _____ and vertical movement of air called ____.
Name the factors that determine the temperature at a place.
How does the following element influence the weather of a place?
Pressure
What does a large difference between the temperatures of a dry-bulb thermometer and a wet-bulb thermometer of a hygrometer indicate?
What is the Beaufort scale?
What is wind? What precautions must be taken while placing a wind vane?
This could be a classroom activity. If your school laboratory has an anemometer, use it to record your city’s wind speed for a week. Use the Beaufort Scale to find out the character of wind during these days. Record your observations carefully in your notebook. You could even draw small neat sketches to show the effect of the wind.
Who am I?
I am present in the atmosphere in the form of vapour.
Complete the following table.
| Weather | Climate |
| Short-lived condition of atmosphere | |
| Does not change quickly | |
| Expressed with respect to a specific place | |
| Elements of climate: Temperature, pressure, winds, humidity and precipitation |
