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. A nonliving part of an organism's habitat






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






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






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






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






6. Trees - grass - crops - wetlands - water - building and pavements






7. An amount of a renewable resource that can be harvested regularly without reducing the future supply






8. Taking in carbon dioxide from the atmosphere during photosynthesis






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






10. Any substance that poses a chemical hazard






11. This draws people from urban areas to rural areas






12. The process of cutting down only some trees in an area






13. The highest level of biodiversity






14. A region that has many different types of organism is described as having a high level of this






15. Transportation systems - communications systems - water services - power supplies - and schools






16. Rising sea level






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






18. Help improve the standard of living for residents






19. Manage - protect and reintroduce threatened and endangered species






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






21. Making direct measurements






22. The disappearance of all members of a species from Earth






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






24. A resource that is either always available or is naturally replaced in a relatively short time






25. Amount of land each person uses






26. A consumer that eats only plants






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






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






29. All the members of one species in a particular area






30. A group of organisms that are physically similar and can mate with each other and produce offspring that can also mate and reproduce






31. Shift of population from countryside to cities






32. Causes a cooling effect


33. The series of changes that occur in an area where no soil or organisms exist






34. Illegal killing or removal of wildlife from their habitats






35. The pattern of overlapping food chains in an ecosystem






36. One way zoos and aquariums help increase wildlife populations






37. A relationship in which one organism lives on or in a host and harms it






38. The disappearance of a particular population from a given area - but not from the entire species globally






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






40. The series of changes that occur in an area where the ecosystem has been disturbed - but where soil and organisms still exist






41. A species that is at risk of extinction






42. The breaking of a habitat into smaller - isolated pieces






43. A species that could become endangered in the near future






44. Loud noises in the air like jack hammers - loud car stereos - etc...






45. Contamination of land - water - or air






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






47. Chemicals that cause cancer






48. A carnivore that feeds on the bodies of dead organisms






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






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