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 species that influences the survival of many others in an ecosystem






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






3. The study of how living things interact with each other and their environment






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






5. The pattern of overlapping food chains in an ecosystem






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






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






8. One way zoos and aquariums help increase wildlife populations






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






10. Watering crops

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






12. Deals with biological hazards






13. A consumer that eats only animals






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






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






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






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






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






19. The largest population that an area can support






20. Sex - weight - and health issues






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






22. Leaving a population






23. Pollution from a factory near your school






24. A species that is at risk of extinction






25. Burning fossil fuels






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






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






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






29. Using public transportation






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






31. Shift of population from countryside to cities






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






33. Chemicals that causes harm to embryos and fetuses






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






35. An organism that can make its own food






36. Building up not out






37. The mating of animals in zoos or wildlife preserves






38. A region that has many different types of organism is described as having a high level of this






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






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






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






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






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






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






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






46. Making direct measurements






47. Amount of land each person uses






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






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






50. Illegal killing or removal of wildlife from their habitats