Time Travelling River

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Across
  1. 3. Some rivers are peaceful in winter
  2. 5. A river may be brown, grey, black, blue, green
  3. 6. Rivers are like time machines
  4. 8. Sometimes they match the color of the sky
  5. 9. They have seen humankind grow up
Down
  1. 1. rivers like the Ganga are thousands of years old
  2. 2. Some rivers are small and shy in the summer
  3. 4. Rivers also change their course
  4. 7. Some rivers roar angrily in the monsoons