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. Deals with biological hazards






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






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






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






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






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






7. This draws people from urban areas to rural areas






8. A consumer that eats both plants and animals






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






10. The struggle between organisms to survive as they attempt to use the same limited resource






11. Anything in the environment that is used by people is called a natural resource






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






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






14. A living part of an organism's habitat






15. Chemicals that causes harm to embryos and fetuses






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






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






18. Building up not out






19. Illegal killing or removal of wildlife from their habitats






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






21. Can result in a decrease of property damage






22. Sex - weight - and health issues






23. Organism that carries pathogens






24. 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






25. The loss of a natural habitat






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






27. One way zoos and aquariums help increase wildlife populations






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






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






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






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






32. By increasing the need for people to drive






33. A form of decision-making concerned with the allocation and conservation of natural resources






34. An organism that can make its own food






35. Any substance that poses a chemical hazard






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






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






38. Provide wood






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






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






41. A species that is at risk of extinction






42. Resulted in suppression of all forest fires

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






44. Amount of land each person uses






45. Contamination of land - water - or air






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






47. Using public transportation






48. Causes a cooling effect

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49. The largest population that an area can support






50. Manage - protect and reintroduce threatened and endangered species