The council of Nicaea and the council of Chalcedon A) established the boundary line between the eastern and western Roman Empires
B)accepted the Nestorian view of the solely divine nature of Jesus
C) settled the bloody war and reunited Rome
D) decided the Jesus possessed both human and divine natures

the question is asking about the things that may have affected and what they effects had on the spanish conquest and settlement of america

explanation:

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.