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 process of cutting down all the trees in an area at once






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






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






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






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






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






7. Are carefully controlled






8. Organism that carries pathogens






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






10. The pattern of overlapping food chains in an ecosystem






11. A living part of an organism's habitat






12. Can result in a decrease of property damage






13. The practice of protecting the environment






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






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






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






17. One way zoos and aquariums help increase wildlife populations






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






19. Loud noises in the air like jack hammers - loud car stereos - etc...






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






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






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






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






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






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






26. Help improve the standard of living for residents






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






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






29. Fires that are set by humans






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






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






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






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






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






35. Bumps on the roots of certain plants






36. Moving into a population






37. Taking in carbon dioxide from the atmosphere during photosynthesis






38. A nonliving part of an organism's habitat






39. Illegal killing or removal of wildlife from their habitats






40. Chemicals that cause cancer






41. Watering crops

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42. An organism that can make its own food






43. Habitat change and fragmentation






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






45. The largest population that an area can support






46. Building up not out






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






48. Manage - protect and reintroduce threatened and endangered species






49. A consumer that eats only plants






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