The half-life of carbon-14 is 5370 years. The carbon-14 levels in a fossil indicate that 6 half-lives have passed. How old is the fossil? PLEASE ANSWER FAST

75,200 years

35,000 years

32,220 years

50,000 years

What element does susan b. anthony include in this passage to strengthen her argument?

What did hunter gathers do to alter the environment?

Pentane with molecular formula c5h12, exists in three isomeric forms. one shows linear carbon chains, another has one -ch3 groups present on the third carbon atom, and the third has two -ch3 groups present on the second carbon atom. what types of isomers are these? a. geometric isomers b. structural isomers c. halotropic isomers