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. Water vapor and carbon dioxide that trap heat near the earth






2. A species that influences the survival of many others in an ecosystem






3. Shift of population from countryside to cities






4. Amount of land each person uses






5. The mating of animals in zoos or wildlife preserves






6. Contamination of land - water - or air






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






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






9. Causes a cooling effect

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






11. One way zoos and aquariums help increase wildlife populations






12. Taking in carbon dioxide from the atmosphere during photosynthesis






13. Cooking oil - fuel - and medicines






14. Has the highest amount of species diversity






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






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






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






18. Moving into a population






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






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






21. Building up not out






22. Manage - protect and reintroduce threatened and endangered species






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






24. The practice of protecting the environment






25. Deals with biological hazards






26. Can result in a decrease of property damage






27. The loss of a natural habitat






28. A group of land ecosystems with similar climates and organisms






29. A natural resource that is not replaced in a useful time frame






30. A virus or bacterium (organisms) that cause infectious diseases






31. Illegal killing or removal of wildlife from their habitats






32. The study of the natural processes that occur in the environment and how humans can affect them






33. The number of different species in an area






34. Chemicals that cause cancer






35. Sex - weight - and health issues






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






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






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






39. Any substance that poses a chemical hazard






40. An organism that breaks down wastes and dead organisms






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






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






43. Habitat change and fragmentation






44. The highest level of biodiversity






45. Leaving a population






46. The reason why tigers living in warmer climates have thinner fur than tigers living in cool climates






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






48. By increasing the need for people to drive






49. Pollution from a factory near your school






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