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






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






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






4. Habitat change and fragmentation






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






6. A consumer that eats both plants and animals






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






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






9. Shift of population from countryside to cities






10. Can result in a decrease of property damage






11. Pollution from a factory near your school






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






13. Rising sea level






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






15. Causes a cooling effect

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






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






18. Transportation systems - communications systems - water services - power supplies - and schools






19. This draws people from urban areas to rural areas






20. A consumer that eats only animals






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






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






23. Making direct measurements






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






25. The practice of protecting the environment






26. A species that is at risk of extinction






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






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






29. Amount of land each person uses






30. Cooking oil - fuel - and medicines






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






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






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






34. A nonliving part of an organism's habitat






35. Resulted in suppression of all forest fires

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36. Building up not out






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






38. Sex - weight - and health issues






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






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






41. A disease that has appeared in the human population for the first time or that has existed for a while but is increasing rapidly and spreading around the world






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






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






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






45. Any substance that poses a chemical hazard






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






47. A living part of an organism's habitat






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






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






50. The largest population that an area can support






Can you answer 50 questions in 15 minutes?



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