Environment

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Across
  1. 1. an area with high density of trees
  2. 5. The sun's light or direct rays.
  3. 6. The introduction of harmful materials into the environment
  4. 7. the layers of gases surrounding a planet or other celestial body.
  5. 8. the state of the atmosphere at a place and time as regards heat, cloudiness, dryness, sunshine, wind, rain, etc.
  6. 9. Ribbon-like body of water that flows downhill from the force of gravity
  7. 10. Highly reactive gas composed of three oxygen atoms.
Down
  1. 2. Precipitation of liquid water drops with diameters.
  2. 3. The decrease in forest areas across the world that are lost for other uses such as agricultural cropl ands
  3. 4. a visible mass of condensed watery vapor floating in the atmosphere, typically high above the general level of the ground