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Your question: What is the final destination for runoff that flows on the surface of the continents?
Your answer: Magma flowing on the earth's surface is the final destination for runoff that flows on the surface of the continents.
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The Arctic ocean is the smallest of the world's five oceans
The answer is Bahrain and Kuwait, both sources provide some evidence.
"https://en.wikipedia.org/wiki/History_of_Bahrain"
"https://en.wikipedia.org/wiki/Sheikhdom_of_Kuwait"
The line would have to pass through at least two points.