Question

multiple-choice question
convection transfer thermal energy through...
direct contact
circulating fluids or gases
waves
rewatch

Explanation:

To determine how convection transfers thermal energy, we analyze each option:

• "Direct contact" is the mechanism for conduction, not convection.
• "Circulating fluids or gases" matches the definition of convection, where thermal energy is transferred by the movement of fluids (liquids or gases) due to density differences caused by temperature changes.
• "Waves" describe radiation (e.g., electromagnetic waves), not convection.

Answer:

B. circulating fluids or gases (assuming the options are labeled A, B, C with A: direct contact, B: circulating fluids or gases, C: waves)