well according to what i know....headlights only let you see about 350 feet ahead...hope it helps :)
Answer:
Wow, now this one is a hard one, took me quite a while to figure it out but here it is
The abundances of the two isotopes is:
Antimony-121 = 57.2%
Antimony-123 = 42.8%
Explanation:
Answer:
B They move because of the convection currents in the mantle.
