Chinese geography

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Across
  1. 2. A highly densely populated region
  2. 3. One of the highest mountains in the world
  3. 6. Flows across northern china
  4. 7. Also know as the Chang Jiang
Down
  1. 1. a large system of mountain ranges
  2. 4. The world highest mountain
  3. 5. It is mostly a bare rock desert with very little sand