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






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






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






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






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






6. Habitat change and fragmentation






7. The highest level of biodiversity






8. Are carefully controlled






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






10. Watering crops

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11. Increase the stability of an ecosystem






12. Amount of land each person uses






13. Burning fossil fuels






14. Leaving a population






15. Can result in a decrease of property damage






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






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






18. An organism that obtains energy by feeding on the other organisms






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






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






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






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






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






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






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






26. Rising sea level






27. The series of changes that occur in an area where the ecosystem has been disturbed - but where soil and organisms still exist






28. Businesses are arranged in a long row along a roadway - with no main community






29. The loss of a natural habitat






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






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






32. Cooking oil - fuel - and medicines






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






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






35. Moving into a population






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






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






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






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






40. Manage - protect and reintroduce threatened and endangered species






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






42. The practice of protecting the environment






43. Organism that carries pathogens






44. By increasing the need for people to drive






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






46. Causes a cooling effect

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47. Bumps on the roots of certain plants






48. The mating of animals in zoos or wildlife preserves






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






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