Which of the following describes heat loss through convection?

• A. Standing in the Wind in a Sweat-Soaked T-Shirt
• B. Shivering in a Warm Room
• C. Using a Space Heater
• D. Rubbing Hands Together

Answer: (A)

Convection is heat transfer that happens when moving air or liquid carries heat away from the body. When you stand in the wind with a sweat-soaked T‑shirt, the moving air continually replaces the warm air near your skin with cooler air, so heat leaves your body more quickly. The other scenarios involve different mechanisms: shivering in a warm room is the body producing heat rather than losing it via moving air; using a space heater adds warmth to the surroundings, reducing the body’s heat loss; rubbing hands together creates heat in the skin rather than removing it by air movement. So the windy, sweat-soaked situation best illustrates convection.