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प्रश्न
Write true or false for a given statement.
Land and sea breezes are convection currents of cold and warm air.
विकल्प
True
False
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उत्तर
True.
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संबंधित प्रश्न
Write true or false for a given statement.
Equal volumes of different liquids expand by different amounts when they are heated to the same rise in temperature.
Write true or false for a given statement.
Solids expand the least and gases expand the most on being heated.
Fill in the blank
On heating a body, its temperature _______.
Fill in the blank
Gases expand _______ than the liquids.
The fig. shows a glass tumbler containing hot milk which is placed in a tub of cold water. State the direction in which heat will flow.
Name two substances which expand on heating.
Why are gaps left between successive rails on a railway track ?
Why do we use cooking utensils made up of copper.
Explain why we wear woolen clothes in winter.
What are the effects of heat?
