how have mass extinctions helped scientists develop the the geologic time scale? please help

Question

jackky · Answer

@Catlover5925

catlover5925 · Answer

Scientists developed the time scale by studying rock layers and fossils world wide.
Radioactive dating helped determine the absolute divisions in the time scale. so mass extinction help because there is more to study

jackky · Answer

thx ur soo smrt

catlover5925 · Answer

haha thanks! hope this helped

jackky · Answer

it really did the book doesnt really explain it that well wat grd r u n

catlover5925 · Answer

im a sophomore, (10th Grade)

jackky · Answer

u should be a teacher ! :)

jackky · Answer

cool im in 8th sad do u g2 north

catlover5925 · Answer

i do k12 online for Kansas, i was wanting to be a teacher since i love math but instead i am going to be an actuary it sounds a lot more fun and my gma works with them so she can get me a job after i graduate

jackky · Answer

kk bye il refer to u if i need help in a good way kk bye