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






2. A behavior or physical characteristic that allows an organism to live successfully in its environment






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






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






5. An organism that can make its own food






6. One way zoos and aquariums help increase wildlife populations






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






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






9. A close relationship between two species that benefits at least one of the species






10. A species that is at risk of extinction






11. The study of how living things interact with each other and their environment






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






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






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






15. The highest level of biodiversity






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






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






18. A relationship between two species in which both species benefit






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






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






21. Rising sea level






22. Organism that carries pathogens






23. Habitat change and fragmentation






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






25. An organism that is killed and eaten by another organism






26. The probability that a hazard will cause a harmful response






27. Has the highest amount of species diversity






28. Watering crops

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29. Chemicals that causes harm to embryos and fetuses






30. An organism that breaks down wastes and dead organisms






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






32. A species in danger of becoming extinct in the near future






33. Bumps on the roots of certain plants






34. This draws people from urban areas to rural areas






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






36. Sex - weight - and health issues






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






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






39. Shift of population from countryside to cities






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






41. A living part of an organism's habitat






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






43. Illegal killing or removal of wildlife from their habitats






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






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






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






47. Manage - protect and reintroduce threatened and endangered species






48. Contamination of land - water - or air






49. Deals with biological hazards






50. Land that is sparsely populated and has few buildings or roads