Across
- 4. Process by which green plants use sunlight to synthesize food
- 5. The process of planting trees to create a forest
- 7. to learn how the natural world works, understand how we interact with our natural world and determine how we can address environmental issues to preserve that natural world around us
- 9. Measure of human impact on Earth's ecosystems
- 10. International treaty to reduce greenhouse gas emissions
- 11. Community of living organisms and their physical environment
- 15. Relating to or denoting the generation of electricity using flowing water
- 16. Natural home of an organism
- 17. Power derived from the wind (as by windmills)
- 20. from sources that are naturally replenishing
- 21. Clearing of trees, transforming a forest into cleared land
- 24. Change Long-term alteration of temperature and typical weather patterns
- 25. Structure with walls and roof made chiefly of transparent material, used for growing plants
- 27. The regions of the surface and atmosphere of the Earth where living organisms exist
- 29. Decayed organic material used as plant fertilizer
- 31. Variety of life in the world or a particular habitat
- 33. Contamination of the environment
- 35. energy can neither be created nor destroyed, only altered in form
- 39. Capable of being decomposed by bacteria or other living organisms
- 40. Measure of the impact human activities have on the environment in terms of the amount of greenhouse gases produced
- 41. Natural fuel formed from the remains of living organisms
Down
- 1. Process of capturing and storing atmospheric carbon dioxide
- 2. The process by which fertile land becomes desert
- 3. Economic development that is conducted without depletion of natural resources
- 6. Materials or substances occurring in nature which can be exploited for economic gain
- 8. Protection and preservation of the environment
- 12. Depleting the stock of fish by excessive fishing
- 13. The state or process of a species, family, or larger group ceasing to exist
- 14. Rainfall made sufficiently acidic by atmospheric pollution
- 18. derived from the heat in the interior of the Earth
- 19. Resources that cannot be replaced once they are used
- 22. Converting waste into reusable material
- 23. Ability to maintain ecological balance
- 26. Pollutants released into the air
- 28. Gas in Earth's stratosphere that absorbs UV radiation
- 30. The series of processes by which nitrogen and its compounds are interconverted in the environment
- 32. Process by which soil and rock are removed from the Earth's surface
- 34. Agriculture that relies on techniques such as crop rotation, green manure, compost, and biological pest control
- 36. Waste water and excrement conveyed in sewers
- 37. Power obtained by harnessing the energy of the sun's rays
- 38. Study of interactions among organisms and their environment