1. If you travel north from the equator, what generally happens to the intensity of ultraviolet light?
a. The intensity increase
b. The intensity decrease
c. The intensity stay the same.

2. Who would you expect to be most at risk for developing the bones disease rickets?
a. Children born to mother with dark skin, living far from equator.
b. Adults with dark skin who live close to equator
C. Children born to mothers with light skin living close to the equator
d. Adults with light skin who live close the equator