Question

scenario:
sunlight heats the surface of the ocean. air moving across the warm surface absorbs heat, becomes less dense, and rises. as the air rises, it cools, becomes denser, and sinks back toward the surface. this cycle repeats and helps move air and water around earth.
question:
which process is best described in this scenario?
a. radiation, because heat travels directly from the sun to earth
b. conduction, because heat moves only through direct contact with solids
c. convection, because warm air and water rise while cooler, denser air and water sink
d. reflection, because heat is bounced back into space
*dont forget to answer the questions on screen 10

Explanation:

The scenario describes warm, less dense air/water rising, then cooling, becoming denser, and sinking, creating a cyclic movement of fluids (air and water) to transfer heat. This matches the definition of convection, where heat is transferred by the movement of a fluid due to density differences from temperature changes. Radiation is heat transfer via electromagnetic waves (no direct fluid movement), conduction requires direct contact between solids, and reflection is heat bouncing back, which is not described here.

Answer:

C. Convection, because warm air and water rise while cooler, denser air and water sink