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. Shift of population from countryside to cities






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






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






4. Building up not out






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






6. One way zoos and aquariums help increase wildlife populations






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






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






9. Deals with biological hazards






10. By increasing the need for people to drive






11. Can result in a decrease of property damage






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






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






14. Relieving a nation from repaying some of the money it owes other nations in exchange for protecting its biodiversity






15. 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






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






17. Bumps on the roots of certain plants






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






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






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






21. Watering crops

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22. The pattern of overlapping food chains in an ecosystem






23. Cooking oil - fuel - and medicines






24. Help improve the standard of living for residents






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






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






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






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






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






30. A species that is at risk of extinction






31. Making direct measurements






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






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






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






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






36. Has the highest amount of species diversity






37. Fires that are set by humans






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






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






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






41. Burning fossil fuels






42. Sex - weight - and health issues






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






44. Any substance that poses a chemical hazard






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






46. The highest level of biodiversity






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






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






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






50. Contamination of land - water - or air