The Brainliest Answer!
Radiation- The emission of energy as electromagnetic waves or as moving subatomic particles, especially high-energy particles which cause ionization.
Convection- The movement caused within a fluid by the tendency of hotter and therefore less dense material to rise, and colder, denser material to sink under the influence of gravity, which consequently results in transfer of heat.
Good Absorbers of heat- dark matt surfaces, black bodies, etc.
Good Emitters of heat- cooling fins on the back of refrigerator, etc
Good Reflectors of heat- shining surfaces, etc
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Thanks alot for marking my answer as brainliest... ;D