Which of the following is not radiation ? A. baking in a metal pan in the oven , B. heat from a fire , C. microwaving food , or D. suns rays

Answer:
A. because it is conduction the transfer of heat through touching solids. Microwaving is wrong because rays of heat warm up the food. Radiation is the transfer through rays/gases.
Explanation:
Baking in a metal pan and microwaving are not radiation.
Radiation is a type of energy transfer that move in form of waves or particles or is transfer in form of wave. People are majorly exposed to radiation from cosmic rays, radioactive materials found in the soil, water, food, air and so on.
Therefore, Baking in a pan is not radiation because heat is transfer by conduction. to the solids.
Microwaving is not radiation because heat warm the food.
Learn more about Radiation from the link below.
https://brainly.com/question/893656