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Option 4 : A-2, B-3, C-1
The correct answer is option 4, i.e, A-2, B-3, C-1.
- Mackenzie River:
- Its basin is the largest in Canada.
- Drained an area of 697000 square miles which is almost as large as Mexico.
- It has a strong flow.
- Its lake covered triangular delta measures more than 120 miles from north to south.
- And is about 50 miles wide along the Arctic Shore.
- Source- Head of Finlay River.
- Outflow- Beaufort Sea.
- Yukon River:
- Flows through the central Yukon territory of northwestern Canada and the central region of the US states of Alaska.
- It measures 1980 miles from the headwaters of the McNeil River.
- The main east and north bank tributaries are the- Teslin, Big Salmon, Pelly, Stewart, Klondike, Porcupine and Koyukuk.
- And the west and south bank tributaries are-Takhini, White and Tanana.
- Source- Junction of Lewes and Pelly Rivers.
- Outflow- Bering Sea.
- Nelson River:
- Its 400 mile course is the ultimate outlet for a basin of 444000 square miles.
- Together with Bow and North and South Saskatchewan rivers.
- And it forms to navigate 1600 mile waterway extending as far west as Canadian Rockies.
- Source- Head of Bow Rier.
- Outflow- Hudson Bay.
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