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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. Manage - protect and reintroduce threatened and endangered species






2. The loss of a natural habitat






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






4. The pattern of overlapping food chains in an ecosystem






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






6. A species that could become endangered in the near future






7. Bumps on the roots of certain plants






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






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






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






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






12. Moving into a population






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






14. Increase the stability of an ecosystem






15. Energy from the sun would be reflected back into space






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






17. Can result in a decrease of property damage






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






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






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






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






22. A species that is at risk of extinction






23. Leaving a population






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






25. Watering crops

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






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






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






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






30. A relationship between two species in which one species benefits and the other is neither helped nor harmed






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






32. The largest population that an area can support






33. An organism that can make its own food






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






35. Making direct measurements






36. One way zoos and aquariums help increase wildlife populations






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






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






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






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






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






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






43. Taking in carbon dioxide from the atmosphere during photosynthesis






44. Contamination of land - water - or air






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






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






47. Building up not out






48. Illegal killing or removal of wildlife from their habitats






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






50. The practice of protecting the environment






Can you answer 50 questions in 15 minutes?



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