Which best describes why the relationship between the united states and china improved toward the end of the twentieth century?

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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2018 means 2018 ce or common era

there have been other eras too including bce, which included way more years.