If heat energy is transferred from direct contact between a warm object in a cold object it has been transferred by

Answer: Conduction

Explanation:

There are basically 3 types of processes that occur for heat transfer - conduction, convection and radiation,Conduction is the process of heat transfer in which the objects are placed in a direct contact and the heat travels from one object to the other due to the temperature difference between them. It is a slow process and occurs usually when the heat transfer has to to take place between solid objects.Convection is the process of heat transfer in which energy transition takes place in the liquids and gases and the heat gets transferred due to the density difference between the fluids.Radiation is a type of heat transfer in which the heat is transferred without any sort of physical contact using electromagnetic waves.

Since, in the given question the heat is being transferred through a direct contact, it is conduction which is taking place.

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