Gravitation force is required for

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(B) Convection is the process of heat transfer in fluids (liquids and gases) where the actual movement of the fluid particles occurs.This movement is

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Convection

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(B) Convection is the process of heat transfer in fluids (liquids and gases) where the actual movement of the fluid particles occurs.This movement is driven by density differences caused by temperature variations.When a fluid is heated,it expands and becomes less dense,causing it to rise,while the cooler,denser fluid sinks to take its place.This buoyancy-driven circulation is entirely dependent on the presence of a gravitational field.In contrast,conduction and radiation do not require the bulk movement of matter and are independent of gravity.

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