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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.
APPEARS IN
संबंधित प्रश्न
Write true or false for a given statement.
Solids expand the least and gases expand the most on being heated.
Write true or false for a given statement.
A mercury thermometer makes use of the property of the expansion of liquids on heating.
Fill in the blank
_________ determines the degree of hotness or coldness of a body.
What do you understand by thermal expansion of a substance ?
State one application of thermal expansion of liquids.
What are the good and bad conductors of heat ? Give two examples of each.
In summer, ice is kept wrapped in a gunny bag. Explain the reason.
Why is a ventilator provided in a room?
Why do we prefer to wear white or light coloured clothes in summer and black or dark coloured clothes in winter ?
______ is the only matter on the Earth that can be found naturally in all three states.
