Why do consumers feel warmer after eating a meal

Which process does not require the presence of a physical substance in order to transfer heat? air in the atmosphere is heated by the ground. this warm air then rises, and cooler air falls. this is an example of what type of process? how is conduction different from radiation?

What is the molar mass of ca(cio4)2

Nan element’s square on the periodic table, the number with the greatest numerical value represents the