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. 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






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






3. Illegal killing or removal of wildlife from their habitats






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






5. Manage - protect and reintroduce threatened and endangered species






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






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






8. Chemicals that cause cancer






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






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






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






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






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






14. The pattern of overlapping food chains in an ecosystem






15. An organism that breaks down wastes and dead organisms






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






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






18. The mating of animals in zoos or wildlife preserves






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






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






21. An organism that can make its own food






22. Can result in a decrease of property damage






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






24. The practice of protecting the environment






25. Taking in carbon dioxide from the atmosphere during photosynthesis






26. Help improve the standard of living for residents






27. Moving into a population






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






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






30. Fires that are set by humans






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






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






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






34. A species that is at risk of extinction






35. Increase the stability of an ecosystem






36. Pollution from a factory near your school






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






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






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






40. Has the highest amount of species diversity






41. Rising sea level






42. The highest level of biodiversity






43. Watering crops

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






45. A consumer that eats only animals






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






47. The largest population that an area can support






48. Chemicals that causes harm to embryos and fetuses






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






50. Sex - weight - and health issues