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






2. A nonliving part of an organism's habitat






3. Shift of population from countryside to cities






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






5. The largest population that an area can support






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






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






8. This draws people from urban areas to rural areas






9. The loss of a natural habitat






10. Taking in carbon dioxide from the atmosphere during photosynthesis






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






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






13. A consumer that eats only animals






14. Leaving a population






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






16. The disappearance of all members of a species from Earth






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






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






19. Contamination of land - water - or air






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






21. The practice of protecting the environment






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






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






24. Bumps on the roots of certain plants






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






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






27. Help improve the standard of living for residents






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






29. The pattern of overlapping food chains in an ecosystem






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






31. An organism that can make its own food






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






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






34. Causes a cooling effect

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35. Provide wood






36. Sex - weight - and health issues






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






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






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






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






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






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






43. Fires that are set by humans






44. Chemicals that cause cancer






45. Global phenomenon that has caused some organisms to move toward the poles and to higher altitude






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






47. Cooking oil - fuel - and medicines






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






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






50. Viruses - bacteria and other organisms in the environment that harm human health







Sorry!:) No result found.

Can you answer 50 questions in 15 minutes?


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