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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.
Heat flows from a body at a high temperature to a body at a low temperature when they are kept in contact.
Name two substances which expand on heating.
Describe an experiment to show that air expands on heating.
An empty glass bottle is fitted with a narrow tube at its mouth. The open end of the tube is kept in a beaker containing water. When the bottle is heated, bubbles of air are seen escaping into the water. Explain the reason.
Select good and bad conductors of heat from the following:
copper, mercury, wood, iron, air, saw-dust, cardboard, silver, plastic, wool.
Why is an oven made of double walls with the space in between filled with cork ?
Explain why the water pipes are covered with cotton during very cold weather.
The bottom of a cooking utensil is painted black. Give the reason.
What are the effects of heat?
In ice cubes, the force of attraction between the water molecules is ______.
