6. How did the decision of Dread Scott case of 1857 affect slavery? A. Owners had a right to punish their slaves harshly
B. Slavery could not be abolished in the north because slaves were property
C. Slaves could no longer work to buy their freedom
D. Slave children could now be sold away from their families.​

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.

an economic reason that the south needed a reconstruction plan is that plantations, factories, and other businesses were destroyed during the war.