Environmental crossword

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Across
  1. 2. Most air polluted country
  2. 4. which month world's environment day falls
  3. 6. layer which absorbs UV radiations
  4. 7. Closest thermal layer to the earth
  5. 9. count of layers out atmosphere has
  6. 10. Gas available in largest quantity
Down
  1. 1. The term ecology was introduced by
  2. 3. Responsible for turning Taj Mahal yellow
  3. 5. environment modified by human activities
  4. 8. Type of pollution