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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 consumer that eats only plants






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






3. Bumps on the roots of certain plants






4. Using public transportation






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






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






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






8. A form of decision-making concerned with the allocation and conservation of natural resources






9. Leaving a population






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






11. An area with a large population of valuable ocean organisms






12. Chemicals that causes harm to embryos and fetuses






13. An organism that breaks down wastes and dead organisms






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






15. Habitat change and fragmentation






16. The highest level of biodiversity






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






18. Causes a cooling effect

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






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






21. Moving into a population






22. Shift of population from countryside to cities






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






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






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






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






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






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






29. Sex - weight - and health issues






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






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






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






33. Contamination of land - water - or air






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






35. Any substance that poses a chemical hazard






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






37. Can result in a decrease of property damage






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






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






40. Manage - protect and reintroduce threatened and endangered species






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






42. A consumer that eats both plants and animals






43. Rising sea level






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






45. Provide wood






46. The number of different species in an area






47. The loss of a natural habitat






48. Deals with biological hazards






49. Resulted in suppression of all forest fires

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50. By increasing the need for people to drive