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प्रश्न
You have seen weather reports on television and in newspapers. How do you think we are able to predict the weather?
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उत्तर
The meteorological department of the government collects data on the elements of weather such as maximum and minimum temperatures, maximum and minimum humidity, rainfall, wind speed, etc. They are able to study these elements using various instruments. The maximum and minimum temperature of a day is measured by a thermometer known as the maximum−minimum thermometer. Rain fall is measured by an instrument known as the rain gauge. Wind speed is measured by anemometers. There are various instruments used to measure humidity.
संबंधित प्रश्न
What would have happened if there would have been no atmosphere around the earth?
We often leave the lights switched on and fans running when we are not in the room. We switch on the air-conditioning even though we don’t really need it. We insist on being dropped to school in the car every day. Thus, we waste valuable energy which is generally produced by burning coal and petroleum. As you know, the burning of these fuels release gases that pollute the atmosphere.
Make a list of the similar things that we do without realizing that we are destroying the environment. Think of the ways that we can behave differently.
What is the troposphere?
Name different layers of atmosphere. Describe the important characteristics of each layer.
The study of weather is called ___________.
Movement of wind takes place in ______ layer.
The atmosphere is held in place by the earth’s ______.
A ______ shows the direction in which the air is moving at a particular place.
The ozone layer protects all life on earth from the harmful ______ rays of the sun.
Choose the correct sequences
