The scientific study of rock strata (layers) is known as and based on the principle of the scientific study of rock strata (layers) is known as and based on the principle of geomorphology; uniformitarianism paleogeography; plate tectonics paleontology; catastrophism sedimentology; deposition stratigraphy; superposition

Which two words in this excerpt from the count of monte cristo can be used as synonyms to determine the meaning of the word grotto? dantès entered the second grotto. the second grotto was lower and more gloomy than the first; the air that could only enter by the newly formed opening had the mephitic smell dantès was surprised not to find in the outer cavern. he waited in order to allow pure air to displace the foul atmosphere, and then went on.

In exchange for land, a knight agrees to be a sort of sub-vassal to a vassal. this agreement was known as: investiture homage tyranny subinfeudation

The american public was excited by the invention of the railroad system. true false