The density of a quartz crystal is 2.6 g/cm3. If it is hit with a hammer and breaks into 2 pieces of equal size, what will be the density of each piece? A 2.6 g/cm3
B 5.2 g/cm3
C 1.3 g/cm3
D It is impossible to determine the densities without measuring the mass and volume of each piece separately

I'm soooo sorry but i can't answer but you can ask another professor

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.