What do you understand by the term 'Advection' ?

A. Heat is transferred horizontally by winds

B. Heat is transferred horizontally by both winds and ocean currents

C. Heat is transferred vertically through the air

D. Heat is transferred horizontally through ocean currents

Answer: Option B

Solution(By Examveda Team)

Advection is the horizontal transport or transfer of a quality such as heat and cold from one point to another. Advective transfers occur either in the oceans by currents of seawater or by large-scale movement in the atmosphere where humidity (atmospheric moisture) is another important property. In both cases a major example is the transport of cold air or water masses from the polar regions to lower latitudes.