The Planet Earth

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Across
  1. 5. They occupy 30% of the Earth
  2. 6. Oceans regulate the '______'
  3. 7. Lakes store them
  4. 8. Lakes are '_______' water bodies
Down
  1. 1. One of the major threat to the water bodies
  2. 2. One of the major sea
  3. 3. One of the major ocean
  4. 4. One of the natural feature of the Earth