The man who invented the clock is Christiaan Huygens. Galileo used a pendulum clock, but Huygens is the one credited for inventing the real clock.
Answer:
the answer is d: movement of many african americans from the rural south to cities in the north
Explanation:
many african americans moved to the north from the south due to push and pull factors the main cause being discrimination
Kings mountain.
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Answer:
Also called the Great American Desert, the Great Plains lie between the Rio Grande in the south and the delta of the Mackenzie River at the Arctic Ocean in the north and between the Interior Lowlands and the Canadian Shield on the east and the Rocky Mountains on the west.
Explanation:
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