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Science and Technology - General Knowledge Questions
When warm air rises up and cold air from the surrounding areas rushes in to fill its place then this sets up ________________ in air.
A)
conduction
B)
convection
C)
agitation
D)
radiation

Correct Answer :   convection

When warm air rises up and cold air from the surrounding areas rushes in to fill its place then this sets up convection in air.
 
* When warm air rises, the air pressure at that place gets lowered. The cold air from the surrounding areas rushes in to fill its place. This sets up convection currents in the air.
* Wind currents are generated due to uneven heating on the earth.
* Convection is the process by which the transmission of heat takes place through a substance from one point to another due to actual bodily movement of heated particles of the substance.

Published On : June 8, 2021
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