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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. A natural pattern in which species diversity generally increases toward the equator






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






3. Burning fossil fuels






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






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






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






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






8. Chemicals that cause cancer






9. Contamination of land - water - or air






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






11. The pattern of overlapping food chains in an ecosystem






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






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






14. Organism that carries pathogens






15. By increasing the need for people to drive






16. A consumer that eats only plants






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






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






19. Any substance that poses a chemical hazard






20. Making direct measurements






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






22. A relationship between two species in which both species benefit






23. Manage - protect and reintroduce threatened and endangered species






24. Bumps on the roots of certain plants






25. Are carefully controlled






26. Help improve the standard of living for residents






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






28. Fires that are set by humans






29. A disease that has appeared in the human population for the first time or that has existed for a while but is increasing rapidly and spreading around the world






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






31. Cooking oil - fuel - and medicines






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






33. The mating of animals in zoos or wildlife preserves






34. A nonliving part of an organism's habitat






35. Leaving a population






36. An organism that can make its own food






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






38. The number of different species in an area






39. Increase the stability of an ecosystem






40. Amount of land each person uses






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






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






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






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






45. Illegal killing or removal of wildlife from their habitats






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






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






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






49. Provide wood






50. Rising sea level







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Can you answer 50 questions in 15 minutes?


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