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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. Sex - weight - and health issues






2. Rising sea level






3. A consumer that eats only plants






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






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






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






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






8. Using public transportation






9. Any substance that poses a chemical hazard






10. Deals with biological hazards






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






12. The mating of animals in zoos or wildlife preserves






13. Shift of population from countryside to cities






14. The pattern of overlapping food chains in an ecosystem






15. The practice of protecting the environment






16. This draws people from urban areas to rural areas






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






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






19. Increase the stability of an ecosystem






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






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






22. Can result in a decrease of property damage






23. A nonliving part of an organism's habitat






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






25. Causes a cooling effect

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






27. Contamination of land - water - or air






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






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






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






31. Taking in carbon dioxide from the atmosphere during photosynthesis






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






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






34. Watering crops

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35. Moving into a population






36. An organism that breaks down wastes and dead organisms






37. Chemicals that causes harm to embryos and fetuses






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






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






40. The highest level of biodiversity






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






42. When fish are caught faster than they can breed - causing the populatio to decrease






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






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






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






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






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






48. Illegal killing or removal of wildlife from their habitats






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






50. Bumps on the roots of certain plants







Sorry!:) No result found.

Can you answer 50 questions in 15 minutes?


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