Question

the active agent responsible for the sensation of hotness and coldness​

Answer 1

Explanation:

bacteria is the answer for this question

Answer 2

Answer:

Heat is a kind of energy that gives us a sensation of hotness or coldness. A quantitative measure of the sensation of hotness or coldness is given by temperature. Therefore, temperature is the degree of hotness or coldness of a body. It is related to the average kinetic energy of the molecules of a material.