FOOD TECHNOLOGY

Detailed explanation-1: -Convection. The rising of warm air is how heat (or energy) is transferred throughout our atmosphere. This process is called convection, and the rising of warm air and sinking of cold air is called a convection current.

Detailed explanation-2: -When people say that heat rises, what they mean is that one place gets warmed up and one place cools down. Taken literally, the phrase ‘heat rises’ presumably means that the place above a warm object will warm up, while the object itself would cool down.

Detailed explanation-3: -Warm air rises primarily due its lower density as compared to cooler air. As the temperature increases, the density of the air decreases.