World Environment Day

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Across
  1. 4. the circumstances or conditions that surround us
  2. 7. Theme of world environment dat 2021
  3. 8. The type of fuel humans depend on most. It is nonrenewable
  4. 10. The regions of the surface, atmosphere, and hydrosphere of the earth
  5. 11. _________ decreases the amount of organic waste that enters landfills
  6. 13. An international treaty giving countries a timeline to reduce their emissions of greenhouse gases. It has not been signed by the United States
  7. 15. This important layer of dirt is essential for ensuring plant growth and its nutrients are retained by trees. over time, it is washed away by agriculture
  8. 18. Methane, CO2, Hydrogen, and Fluorine are what type of gasses
  9. 19. More than half of the breathable oxygen in the world comes from where
  10. 21. The variety of life in the world or in a particular habitat
Down
  1. 1. a community together with its environment
  2. 2. makes up about one third of all plastic pollution
  3. 3. Sources that are caused or influenced by humans
  4. 5. Convert (waste) into reusable material
  5. 6. The most abundant energy source capable of being harnessed by humans
  6. 9. Air Pollution/Global Warming can cause ozone
  7. 12. Killing an animal out of season or without a license
  8. 14. One of the factors that causes global warming, desertification, and loss of topsoil. It is often a result of poor management of natural resources
  9. 16. Typical hazardous constituent of universal waste lamps and in seafood
  10. 17. Acid rain harms vegetation and _____ life?
  11. 20. Living within the limits of earth’s natural resources