Suppose that you are a geologist trying to determine the relative age of several rock layers. Unfortunately there are so many unconformities in the area that it is difficult to rely on the principle of superposition. How might you figure out this puzzle?

slavery, abortion, donald trump, gay marriage, racial rights, immigration  

explanation:

anything that has been broth up to the supreme court is something of grate political divide   so just look as court cases

b: to eliminate competition from other farmers

the foundation of greek city-states: following the fall of the mycenaean civilization in the 10th century bc, the area surrounding the empire went through its own mini dark ages. answer and explanation