Past decisions of the courts, the original basis for the u. s. legal system, are called:

what are the others?

folds are formed when heat and pressure is applied to the rock. the higher the temperature, the more pliable rocks become. folds are more likely to occur when the deformation caused by the compression is applied slowly. faults are defined as the displacement of rock that were once connected along a fault line.

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a

explanation:

very positive impact on our industries in the west, sine they promoted settlement and increased the ways in which goods could be transported to market.