Test your basic knowledge |

DSST Environmental Science - 2

Subjects : dsst, science
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Using public transportation






2. Contamination of land - water - or air






3. The most direct way in which biodiverstiy can provide a source of income






4. An environment that provides the things an organism needs to live - grow - and reproduce






5. A consumer that eats only animals






6. The clearing of a forest and replacing it with another land use






7. Causes a cooling effect

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8. Illegal killing or removal of wildlife from their habitats






9. Making direct measurements






10. Concentrations of toxicants can be greatly multiplied with each step up the food chain






11. Rising sea level






12. A series of events in which one organism eats another and obtains energy






13. Soil - fresh water - wild animals - and timber






14. When fish are caught faster than they can breed - causing the populatio to decrease






15. Resulted in suppression of all forest fires

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16. Chemical hazard that was once found in paint - young children are frequently tested for this






17. The number of different species in an area






18. An area with a large population of valuable ocean organisms






19. Building up not out






20. A disease that has appeared in the human population for the first time or that has existed for a while but is increasing rapidly and spreading around the world






21. The amount of replacement is equal to the amount harvested






22. Anything in the environment that is used by people is called a natural resource






23. Process of measuring the chance that an environmental hazard will cause harm






24. Has the highest amount of species diversity






25. A natural pattern in which species diversity generally increases toward the equator






26. The most effective way of preserving biodiversity by protecting whole ecosystems






27. An example of a method for managing whole ecosystems and habitats






28. An organism that obtains energy by feeding on the other organisms






29. An organism that breaks down wastes and dead organisms






30. The amount of carbon dioxide emissions for which an individual or group is responsible






31. Provide wood






32. One way zoos and aquariums help increase wildlife populations






33. Relieving a nation from repaying some of the money it owes other nations in exchange for protecting its biodiversity






34. Taking in carbon dioxide from the atmosphere during photosynthesis






35. A species that is at risk of extinction






36. Shift of population from countryside to cities






37. A nonliving part of an organism's habitat






38. Global phenomenon that has caused some organisms to move toward the poles and to higher altitude






39. A living part of an organism's habitat






40. Burning fossil fuels






41. The process of changing free nitrogen gas into a usable form






42. A form of decision-making concerned with the allocation and conservation of natural resources






43. Viruses - bacteria and other organisms in the environment that harm human health






44. Sikhote-Alin mountains and the Siberian tigers living there are separated from other mountains by this






45. Help improve the standard of living for residents






46. Species that are carried to a new location by people






47. The form of transportation that uses the most energy per passenger mile






48. A relationship between two species in which one species benefits and the other is neither helped nor harmed






49. Cooking oil - fuel - and medicines






50. A large area heavily populated like Miami - Florida or Toledo - Ohio