Final answer:
Conduction is heat transfer through contact, convection through fluid movement, and radiation through electromagnetic waves.
Step-by-step explanation:
The difference between conduction, convection, and radiation involves the mechanisms by which heat is transferred. Conduction is the transfer of heat through direct contact between materials. You experience this when heat moves from the burner of a stove through the bottom of a pan to the food inside.
Convection involves the movement of heat by the flow of fluids; this is seen when hot air from a fireplace rises or as you stir a hot cup of coffee. Finally, radiation is the transfer of heat through electromagnetic waves, such as infrared photons heating your hand near an electric heater or the warmth you feel from the Sun, with no need for a material medium.
While the terms 'biosphere' and 'geosphere' are not directly related to heat transfer, they pertain to different 'spheres' of the Earth. The biosphere includes all living organisms and their interactions with elements of the atmosphere, hydrosphere, and lithosphere. The geosphere refers to the Earth's interior, including its rocks and minerals, and is often considered in discussions about the Earth's physical processes.