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. The number of different species in an area






2. Building up not out






3. Causes a cooling effect

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4. The disappearance of all members of a species from Earth






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






6. Chemicals that causes harm to embryos and fetuses






7. A virus or bacterium (organisms) that cause infectious diseases






8. The highest level of biodiversity






9. By increasing the need for people to drive






10. Watering crops

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11. Rising sea level






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






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






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






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






16. One way zoos and aquariums help increase wildlife populations






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






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






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






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






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






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






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






24. Chemicals that cause cancer






25. Any substance that poses a chemical hazard






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






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






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






29. Provide wood






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






31. Leaving a population






32. Can result in a decrease of property damage






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






34. Increase the stability of an ecosystem






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






36. A consumer that eats only plants






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






38. The mating of animals in zoos or wildlife preserves






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






40. Fires that are set by humans






41. Moving into a population






42. Bumps on the roots of certain plants






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






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






45. An environment that provides the things an organism needs to live - grow - and reproduce






46. Help improve the standard of living for residents






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






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






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






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