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. This draws people from urban areas to rural areas






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






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






4. A large area heavily populated like Miami - Florida or Toledo - Ohio






5. Are carefully controlled






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






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






8. Causes a cooling effect

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






10. Trees - grass - crops - wetlands - water - building and pavements






11. A nonliving part of an organism's habitat






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






13. 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






14. An organism that breaks down wastes and dead organisms






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






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






17. Help improve the standard of living for residents






18. The probability that a hazard will cause a harmful response






19. A species that is at risk of extinction






20. Habitat change and fragmentation






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






22. Taking in carbon dioxide from the atmosphere during photosynthesis






23. The largest population that an area can support






24. The practice of protecting the environment






25. An amount of a renewable resource that can be harvested regularly without reducing the future supply






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






27. Cooking oil - fuel - and medicines






28. Can result in a decrease of property damage






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






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






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






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






33. Illegal killing or removal of wildlife from their habitats






34. Sex - weight - and health issues






35. The loss of a natural habitat






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






37. The breaking of a habitat into smaller - isolated pieces






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






39. Using public transportation






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






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






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






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






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






45. The highest level of biodiversity






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






47. Contamination of land - water - or air






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






49. Making direct measurements






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