What are the two differences between the normal mole and the mole that has developed melanoma?

the second mole has a melanoma or whatever

the answer is tropical areas. the tropical areas obtain more

radiant energy from the sun than they lose to space through terrestrial

radiation, and vice versa for polar areas. earth has an energy remaining in the

tropics and an energy scarcity for the polar areas.

explanation:

answer; ///i believe the correct answer is (aids) acquired immune deficiency syndrome;