GK
WORLD GEOGRAPHY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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confluence site
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fall line site
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harbor site
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oasis site
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Detailed explanation-1: -A confluence occurs when two or more flowing bodies of water join together to form a single channel. Confluences occur where a tributary joins a larger river, where two rivers join to create a third or, where two separated channels of a river, having formed an island, rejoin downstream.
Detailed explanation-2: -Beginning at Pittsburgh, Pennsylvania, the Ohio is formed by the confluence of the Allegheny and Monongahela Rivers. It ends 981 miles later at Cairo, Illinois when it empties into the Mississippi. The average depth is 24 feet, with the deepest section of 130 feet near Louisville, Kentucky.
Detailed explanation-3: -The Allegheny and Monongahela Rivers unite to form the Ohio River where Pittsburgh is now located.