]earthquakes can range in strength from very mild to catastrophic. why would a scientific model that simulates seismic activity and the consequences be beneficial?

Which of the following elements is a representative element? a. chromium (cr) b. aluminum (al) c. mercury (hg) d. silver (ag)

Which position represents spring in the southern hemisphere? a) b) c) d)

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?