Which of the following groups believed that slavery was evil and needed to be eradicated permanently in the united states?

a. slavery should be based on popular sovereignty.
b. slavery was immoral and should be abolished.
c. slavery should be allowed to expand into the north because of the decision in dred scott v. sandford
d. slavery should be balanced with an equal number of slave and free states.

radioactive dating, also known as  radioisotope dating  is a process that in  estimating the approximate  age  of  rocks. these data can be analyzed from  the studies dealing with the  decay of the radioactive elements that are present in these rocks. in nature, there are a few types of materials or atoms which are quite unstable and they spontaneously decay or breakdown to form other kinds of atoms.