Test your basic knowledge |

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






2. Provide wood






3. Building up not out






4. Has the highest amount of species diversity






5. The pattern of overlapping food chains in an ecosystem






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






7. Causes a cooling effect

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






9. Moving into a population






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






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






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






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






14. A consumer that eats only plants






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






16. This draws people from urban areas to rural areas






17. The practice of protecting the environment






18. Fires that are set by humans






19. Have a greater sensitivity to environmental hazards than any other group






20. An organism that breaks down wastes and dead organisms






21. Taking in carbon dioxide from the atmosphere during photosynthesis






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






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






24. Burning fossil fuels






25. Watering crops

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26. A group of land ecosystems with similar climates and organisms






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






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






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






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






31. Illegal killing or removal of wildlife from their habitats






32. Manage - protect and reintroduce threatened and endangered species






33. The highest level of biodiversity






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






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






36. Making direct measurements






37. Leaving a population






38. Refers to an increase in Earth's average surface temperature






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






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






41. Can result in a decrease of property damage






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






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






44. Organism that carries pathogens






45. Sex - weight - and health issues






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






47. Pollution from a factory near your school






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






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






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