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






2. Sex - weight - and health issues






3. One way zoos and aquariums help increase wildlife populations






4. Resulted in suppression of all forest fires

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






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






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






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






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






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






11. A consumer that eats only plants






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






13. The loss of a natural habitat






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






15. The number of different species in an area






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






17. Watering crops

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






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






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






21. Deals with biological hazards






22. An organism that breaks down wastes and dead organisms






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






24. The largest population that an area can support






25. The amount of replacement is equal to the amount harvested






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






27. Provide wood






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






29. Increase the stability of an ecosystem






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






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






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






33. Any substance that poses a chemical hazard






34. The organism that does the killing in a predation interaction






35. A species that influences the survival of many others in an ecosystem






36. The highest level of biodiversity






37. Fires that are set by humans






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






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






40. Organism that carries pathogens






41. Leaving a population






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






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






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






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






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






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






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






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






50. A consumer that eats only animals






Can you answer 50 questions in 15 minutes?



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