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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 consumer that eats only plants






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






3. By increasing the need for people to drive






4. Sex - weight - and health issues






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






6. Increase the stability of an ecosystem






7. Relieving a nation from repaying some of the money it owes other nations in exchange for protecting its biodiversity






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






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






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






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






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






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






14. The mating of animals in zoos or wildlife preserves






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






16. Deals with biological hazards






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






18. Cooking oil - fuel - and medicines






19. Chemicals that causes harm to embryos and fetuses






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






21. Building up not out






22. Moving into a population






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






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






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






26. Contamination of land - water - or air






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






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






29. Any substance that poses a chemical hazard






30. Watering crops

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31. The practice of protecting the environment






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






33. Are carefully controlled






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






35. Fires that are set by humans






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






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






38. A species that is at risk of extinction






39. Provide wood






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






41. Habitat change and fragmentation






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






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






44. A consumer that eats only animals






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






46. Bumps on the roots of certain plants






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






48. The amount of carbon dioxide emissions for which an individual or group is responsible






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






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







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Can you answer 50 questions in 15 minutes?


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