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 group of land ecosystems with similar climates and organisms






2. The practice of protecting the environment






3. The loss of a natural habitat






4. Shift of population from countryside to cities






5. An organism that can make its own food






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






7. An organism that breaks down wastes and dead organisms






8. The reason why tigers living in warmer climates have thinner fur than tigers living in cool climates






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






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






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






12. Pollution from a factory near your school






13. Help improve the standard of living for residents






14. A nonliving part of an organism's habitat






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






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






17. Amount of land each person uses






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






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






20. One way zoos and aquariums help increase wildlife populations






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






22. Contamination of land - water - or air






23. Water vapor and carbon dioxide that trap heat near the earth






24. Burning fossil fuels






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






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






27. Organism that carries pathogens






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






29. A consumer that eats only plants






30. Resulted in suppression of all forest fires

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






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






33. Habitat change and fragmentation






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






35. A group of organisms that are physically similar and can mate with each other and produce offspring that can also mate and reproduce






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






37. Taking in carbon dioxide from the atmosphere during photosynthesis






38. Has the highest amount of species diversity






39. A consumer that eats both plants and animals






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






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






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






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






44. Concentrations of toxicants can be greatly multiplied with each step up the food chain






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






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






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






48. A consumer that eats only animals






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






50. The mating of animals in zoos or wildlife preserves