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प्रश्न
Set up an experiment to measure gain and loss of heat by water, sand and air.
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उत्तर
Take two beakers and fill them with water and sand, respectively. Take a closed bottle and place a thermometer in it. Keep these three in sunlight for three hours. Now, measure the temperatures of the three containers.
You will observe that the temperature of water is less than the temperature of sand, as sand gets heated by the sun faster than water. Also, the temperature of air in the closed bottle will be higher than the normal temperature of air in open because of the greenhouse effect.
Also, measure the temperature in shade, as temperature in direct sunlight will not be uniform.
संबंधित प्रश्न
How are clouds formed?
Demonstrate the formation of convective currents.
Explain in brief the different layers of the atmosphere and the basic functions of the main layers.
State whether the following is true or false.
The earth’s atmosphere contains 99 per cent oxygen, which is essential for life.
Fill in the blank:
The layer of the atmosphere where ozone is found is called the ________.
Choose the correct option.
The ozone layer is found between _______ km above the earth’s surface.
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.
There is cut-off signal when NASA rocket reaches in the region of ______.
The atmosphere is made of ______ different layers.
Why do aircraft usually fly above the troposphere layer?
