Final answer:
Advection is the horizontal movement of heat by fluid motion, often impacting climates and weather systems unlike the vertical heat transfer known as convection.
Step-by-step explanation:
Advection refers to the horizontal transfer of heat by the movement of a fluid, usually in the atmosphere or the ocean. Unlike convection, which is the vertical movement that occurs when heat causes a fluid to expand, become less dense, and rise, advection is more about the movement of heat from one area to another along a flat plane. An example of advection is the wind carrying sea breeze inland, which can cause temperatures to drop in coastal areas. In meteorology, advection is very important as it can impact weather patterns and climate conditions. For instance, warmer air being advected over a colder area can lead to melting of snow.