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






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






3. One way zoos and aquariums help increase wildlife populations






4. Pollution from a factory near your school






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






6. Causes a cooling effect

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7. Sex - weight - and health issues






8. Manage - protect and reintroduce threatened and endangered species






9. Increase the stability of an ecosystem






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






11. Leaving a population






12. Making direct measurements






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






14. Can result in a decrease of property damage






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






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






17. Habitat change and fragmentation






18. When fish are caught faster than they can breed - causing the populatio to decrease






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






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






21. Any substance that poses a chemical hazard






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






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






24. The process of cutting down all the trees in an area at once






25. Building up not out






26. The largest population that an area can support






27. Burning fossil fuels






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






29. Help improve the standard of living for residents






30. Moving into a population






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






32. Has the highest amount of species diversity






33. An organism that can make its own food






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






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






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






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






39. Contamination of land - water - or air






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






41. Provide wood






42. A species that is at risk of extinction






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






44. An organism that breaks down wastes and dead organisms






45. Bumps on the roots of certain plants






46. Chemicals that causes harm to embryos and fetuses






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






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






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






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