Which among the following terms denote a vertical wall of water moving upstream in a river?
Q. Which among the following terms denote a vertical wall of water moving upstream in a river?
Answer: Tidal bore
Notes: A tidal bore is a tidal phenomenon where the leading edge of the incoming tide forms a wave of water that travels up a river or narrow bay. This is against the direction of the river or bay's current. It appears like a huge wall of water moving upstream.

 

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