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Grand Canyon of U.S.A. is formed by which of the following rivers ?

  • A.St. Lawrence
  • B.Missouri
  • C.Ohio
  • D.Colorado

Answer: D

The Grand Canyon was cut by the Colorado river.

Over some millions of years the Colorado, aided by the uplift of the Colorado Plateau, has carved the canyon in Arizona, about 446 km long and up to 1.8 km deep.

The St. Lawrence drains the Great Lakes to the Atlantic, the Missouri is the long tributary of the Mississippi, and the Ohio is the Mississippi's eastern tributary; none flows through Arizona.

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