Answer:
2.The factor or condition that is necessary for heat transfer to occur is that two object 'must have different temperature'. Heat always flow or move from the hotter object to the cooler one. ... Heat Transfer can occur in three ways: Conduction, Convection, and Radiation.
3.CONDUCTION
-Conduction is the transfer of energy from one molecule to another by direct contact.
CONVECTION
-Convection is the movement of heat by a fluid such as water or air.
RADIATION
-Radiation is the transfer of heat by electromagnetic waves.
Explanation:
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