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






2. Chemicals that causes harm to embryos and fetuses






3. Businesses are arranged in a long row along a roadway - with no main community






4. Has the highest amount of species diversity






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






6. Manage - protect and reintroduce threatened and endangered species






7. Moving into a population






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






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






10. The largest population that an area can support






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






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






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






14. Illegal killing or removal of wildlife from their habitats






15. Rising sea level






16. An organism that can make its own food






17. A species that is at risk of extinction






18. Plan to establish an 8000 kilometer long strip of land to rejoin fragments of tiger habitat






19. Deals with biological hazards






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






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






22. The mating of animals in zoos or wildlife preserves






23. Using public transportation






24. Bumps on the roots of certain plants






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






26. Taking in carbon dioxide from the atmosphere during photosynthesis






27. A nonliving part of an organism's habitat






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






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






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






31. Watering crops

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






33. Increase the stability of an ecosystem






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






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






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






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






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






39. Refers to an increase in Earth's average surface temperature






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






41. A consumer that eats both plants and animals






42. Pollution from a factory near your school






43. One way zoos and aquariums help increase wildlife populations






44. Any substance that poses a chemical hazard






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






46. Making direct measurements






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






48. Habitat change and fragmentation






49. A consumer that eats only animals






50. The number of different species in an area