You are presented with the quiz "What do you add to decrease the melting point of a liquid?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "adding salt to a liquid decreases the melting point of that liquid" and "sodium Chloride: It is a table salt ". So, what's the best answer to the question?
Choose from: (a). salinity (b). Dehydration (c). Heat energy (d). sodium chloride (e). layers of fat (f). chemical changes (g). evaporation (h). aqueous solution
Answer:
(d).