13. (05.04 HC) A significant difference between the social structure of the Roman Republic and the Roman Empire was that (4 points)
the classes of the Roman Empire were more diverse than those of the Roman Republic
in the Roman Republic, freed people and slaves were two separate classes
there was a new upper class in the Roman Empire
in the Roman Empire, people had less opportunities to rise in social status

according to hess's theory, when the magma cooled, it would expand and push the tectonic plates apart. it would push the north and south america plates to the west and eurasia and africa ones to the east. the atlantic ocean would get wider but the coastlines of the masses would stay the same.

harry hammond hess was a geologist and a united states navy officer in the second world war. he is considered to be one of the founding fathers of the theory of plate tectonics. he is known for his theories on sea floor spreading, stating that the movement of the continents was the result of see floor spreading. the continents are attached to the plates and do not move separately. the plates themselves shift and change shape, carrying the continents along.

answer; i believe that the correct answer is ( troxel v. granville);

well this isn't a question but if you are asking if it is true or false it is, true.