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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
Choose the correct answer.
This per cent of the atmosphere is composed of nitrogen.
State whether the following is true or false.
The stratosphere extends from the top of the troposphere up to 80 km above the surface of the earth.
What is the troposphere?
In your notebooks, draw a diagram showing the layers of the atmosphere. Mark clearly the ozone layer, the height at which a jet plane can fly and also the height up to which birds can fly.
State whether the following sentence is true (T) or false (F).
The atmosphere is composed mainly of nitrogen and oxygen.
The atmospheric layer, which lies beyond the exosphere is ______.
Why is Troposphere called as weather making layer?
Atmosphere is composed of ______ nitrogen.
______ found above the mesosphere.
The atmosphere of the earth is heated by radiations which are mainly
