Use the information provided below to answer the
questions.
the
The isotope lead-208 (208Pb):
g/mol
g/mol
The isotope strontium-87 (87Sr):
RETRY

i'm pretty sure its b i might be wrong though!

the cold front replaces the warmer air at the ground level changing the wind to be breezy and denser.there is also an immediate drop in the temperature.

answer seismograph;

the correct answer would be b. amelia, because the particals of gas move really fast (charged particals) and gas also has a lot of room (particals move independently) so the only answer that has both of those is amelia's.