Question

6. A lake in the Andes on the border of
Bolivia and peru that is believed to be the world's highest navigable lake . ..............
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Answer 1

Answer:

I think you already answered the question

Answer 2

Answer:

Lake Titicaca

Isaac Callizaya, 39, grew up with the sound of waves lapping on the shores of Lake Titicaca, a giant body of water on the border between Bolivia and Peru that at 3,800 meters (12,500 ft) above sea level is the highest navigable lake in the world.