Across
- 6. the deepest point on the earth's surface
- 8. world's deepest freshwater lake.
- 10. lungs of the world
- 11. the longest river in the world.
- 12. the worlds largest ocean.
Down
- 1. world's highest navigable lake.
- 2. rich fish food.
- 3. largest delta in the world.
- 4. rises in the Gangotri Glacier
- 5. the busiest ocean.
- 7. Three Gorges Dam built on this river.
- 9. this ocean lies in the north polar region.