Q. Convection occurs due to __________.

संवहन __________ के कारण होता है।

A
Contact
संपर्क
B
Bulk motion of fluid
द्रव की थोक गति
C
Vibration of atoms
परमाणुओं का कंपन
D
Radiation
विकिरण

Explanation

Convection is the transfer of heat through the bulk movement of fluids (liquids and gases). When part of the fluid is heated, it becomes less dense and rises, while cooler, denser fluid sinks, creating convection currents.

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