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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.
पर्याय
True
False
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उत्तर
True.
APPEARS IN
संबंधित प्रश्न
Write true or false for a given statement.
Telephone wires are kept tight between the two poles in summer.
Fill in the blank
On heating a body, its temperature _______.
What do you understand by thermal expansion of a substance ?
Why do telephone wires sag in summer ?
State one application of thermal expansion of liquids.
Why are quilts filled with fluffy cotton?
Why is a ventilator provided in a room?
When we heat them the force of attraction between the molecules decreases and the ice cubes become ______.
Mention the factors affecting the flow of heat.
When heat energy is added to a substance, the kinetic energy of its particles ______ and so the particles move at a higher speed.
