(a)[3]
The fisherman attempts to explain why there is a cool breeze from the land. The statements below set out some of his ideas. Put a tick (✓) in the box next to each correct statement. The air above the surface of the warm lake becomes less dense. Air conducts thermal energy well. Water with greater density rises to the lake surface. The cool breeze is caused by convection. Warmer air rises upward. Water conducts thermal energy well.
(b)[2]
Explain how the jacket helps the fisherman stay warm.