The laying on the rock keeps the body in contact with the rock, the transfer of heat takes place due to the conduction.
Thus, conduction is the correct answer to the 12th question.
The fire on the other side feels warm due to the transfer of heat from one side of the door to the other side of the door.
Thus, conduction is the correct answer to the 13th question.
The ice cream on the hot brownie melts due to the transfer of heat from the brownie to the ice cream by the conduction process.
Thus, conduction is the correct answer to the 14th question.
The popcorn is popped in the microwave due to the transfer of energy from the microwave to the popcorn taking place through the radiation.
Thus, radiation is the correct answer to the 15th question.