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 organism that does the killing in a predation interaction






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






3. Energy from the sun would be reflected back into space






4. Using public transportation






5. Building up not out






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






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






8. Habitat change and fragmentation






9. Any substance that poses a chemical hazard






10. One way zoos and aquariums help increase wildlife populations






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






12. Fires that are set by humans






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






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






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






16. Deals with biological hazards






17. The mating of animals in zoos or wildlife preserves






18. The largest population that an area can support






19. Increase the stability of an ecosystem






20. An organism that breaks down wastes and dead organisms






21. The struggle between organisms to survive as they attempt to use the same limited resource






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






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






24. Causes a cooling effect

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






26. Pollution from a factory near your school






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






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






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






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






31. Bumps on the roots of certain plants






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






33. Making direct measurements






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






35. 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






36. The role of an organism in its habitat - or how it makes its living






37. Illegal killing or removal of wildlife from their habitats






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






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






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






41. By increasing the need for people to drive






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






43. Shift of population from countryside to cities






44. The number of different species in an area






45. Has the highest amount of species diversity






46. The process of cutting down all the trees in an area at once






47. A consumer that eats both plants and animals






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






49. A living part of an organism's habitat






50. Help improve the standard of living for residents