Oceans and Seas

Given the name of one of the top 20 longest rivers in the world, name the ocean or sea into which it flows


1Congo (no9)
2Yangtze (no3)
3Amazon (no2)
4Mackenzie (no11)
5Yellow (or Huang He) (no7)
6Nile (no1)
7Murray (no15)
8Mekong (no13)
9Yukon (no20)
10Volga (no16)
quiz kindly submitted by Fraenulum on 12th December 2019