Which of the following is the primary medium for beach erosion? ice
gravity
wind
water

Which feature do highland climates have that lower elevation areas do not?

How many moles of magnesium is 3.01 x10^22 atoms of magnesium?

In the millikan oil drop experiment they determined that every drop had a charge which was a while number multiple of -1.60x10^-19. if a drop has a total charge of -9.60x10^-19 then how many excess electrons are contained within the drop?