Exocrine glands do not
a release their products into ducts
b. empty into a surface or cavity
c. stimulate receptors in target cells
d. all of the above are characteristics of exocrine glands

The answer is option b.

The moths will eventually become extinct

Ibelieve the answer is relative humidity  because it makes more sense that way. solar flares usually occur in space it doesn't affect the earth, well it could but it wont make a significant damage.  latitude is land it doesnt do anything. prevailing winds, i dont know the correct meaning for this but i doubt that affects the land so it has to be relative humidity.