Across
- 1. the effect described as an unforeseen chain of events caused by a disturbance in a system
- 3. an alternative energy source that cannot run out, like solar power
- 5. digging up land to extract the minerals from within
- 9. pollutants that are released into the air
- 11. the practice of using less of a resource so that it will last longer
- 13. a man made structure in a river that we use to collect energy from falling water
- 15. the practice of using resources in ways that maintains them at a certain quality for a certain period of time
- 16. precipitation that is more acidic than normal because of air pollution
- 17. a type of oxygen that is harmful to humans if inhaled
- 18. the water and human wastes that are washed down sinks, showers and toilets
- 22. the Ocean that contains about 2 million bits of plastic per square mile
- 23. the practice of using land for the construction of homes or other buildings
- 25. a type of pollution that has an obvious source
- 26. the number of deaths per 1000 people in a certain amount of time
- 29. the machine that, when spun, creates the electricity
- 30. energy rich substances made from the preserved remains of living things
- 32. anything occurring naturally in the environment that humans use
- 33. the contamination of Earth's land, water and air
- 34. due to global warming, the worlds oceans are doing this at an increasing rate
- 36. forms similarly to petroleum, except found in a gaseous state. ex. methane
- 37. the type of solar power that heats a greenhouse
- 38. the type of energy we collect that comes from heat from Earth's core
- 40. the number of births per 1000 people in a certain amount of time
Down
- 1. the solid fossil fuel made from the remains of plants that died in swampy areas
- 2. a common radioactive fuel source in nuclear power plants
- 4. the removal of forests to use the land for other reasons
- 6. a type of pollution that does NOT have an obvious source
- 7. the advance of desert-like conditions into an area that was previously fertile
- 8. Deepwater __________ was a disastrous oil spill in the Gulf of Mexico
- 10. the practice of raising fish and other water-dwelling organisms for food
- 12. 97 percent of the worlds water is undrinkable because it contains _____
- 14. this is washed off of farms and into bodies of water creating dead-zones where nothing can survive
- 19. a growth pattern in which the larger the population gets, the faster it grows
- 20. an area in which water covers the soil for all or most of the year
- 21. also called oil, this is made from dead small marine life
- 24. when the number of humans grows beyond what the available resources can support
- 27. the process of wind, water and ice moving sediments
- 28. the splitting of a radioactive atom into two smaller atoms while also producing a lot of heat
- 31. holes dug in the ground for all of societies solid wastes
- 35. a resource that cannot be replaced
- 39. a type of pollution that comes from very hot water given off through industrial processes