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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 natural pattern in which species diversity generally increases toward the equator






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






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






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






5. Pollution from a factory near your school






6. Bumps on the roots of certain plants






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






8. Rising sea level






9. Concentrations of toxicants can be greatly multiplied with each step up the food chain






10. The highest level of biodiversity






11. By increasing the need for people to drive






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






13. Shift of population from countryside to cities






14. An organism that breaks down wastes and dead organisms






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






16. This draws people from urban areas to rural areas






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






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






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






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






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






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






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






24. Amount of land each person uses






25. The mating of animals in zoos or wildlife preserves






26. A consumer that eats both plants and animals






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






28. Provide wood






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






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






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






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






33. Chemicals that cause cancer






34. Deals with biological hazards






35. The largest population that an area can support






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






37. Contamination of land - water - or air






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






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






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






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






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






43. Fires that are set by humans






44. Watering crops

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45. Causes a cooling effect

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46. A consumer that eats only animals






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






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






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






50. Any substance that poses a chemical hazard







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Can you answer 50 questions in 15 minutes?


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