Final answer:
The action that is NOT an example of convection is C. A hand feeling warm next to a campfire, because this warmth is experienced through radiation, not through the movement of fluid due to temperature differences which characterizes convection.
Step-by-step explanation:
The question seeks to identify the instance that is NOT an example of convection in action. Convection involves the movement of fluid (such as air or water) as a result of different temperatures and densities, often described by the movement of warmer, less dense fluid rising and cooler, denser fluid sinking.
A. A breeze on a hot day at the beach is caused by the differential heating of land and sea, causing air circulation that can be attributed to convection.
B. The Earth's magnetic field is influenced by the movement of the outer core, this is a complex physical process that involves convective movements of molten material, so this is convection.
C. When your hand feels warm next to a campfire, it's an example of radiant heat transfer, not convection, because the heat is being transferred through radiation, not fluid movement.
D. When your hand feels hot above a campfire, the rising warm air transfers heat through convection to your hand.
Therefore, the instance that is NOT an example of convection is C, where the hand feels warm next to a campfire due to radiation.