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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. Chemicals that causes harm to embryos and fetuses






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






3. Shift of population from countryside to cities






4. Increase the stability of an ecosystem






5. Illegal killing or removal of wildlife from their habitats






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






7. The loss of a natural habitat






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






9. Habitat change and fragmentation






10. Moving into a population






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






12. Fires that are set by humans






13. Chemicals that cause cancer






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






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






16. Cooking oil - fuel - and medicines






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






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






19. Sex - weight - and health issues






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






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






22. Resulted in suppression of all forest fires

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23. The number of different species in an area






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






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






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






27. The practice of protecting the environment






28. A species that is at risk of extinction






29. Contamination of land - water - or air






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






31. Watering crops

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






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






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






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






36. Can result in a decrease of property damage






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






38. Any substance that poses a chemical hazard






39. Has the highest amount of species diversity






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






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






42. Rising sea level






43. Burning fossil fuels






44. This draws people from urban areas to rural areas






45. 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






46. The largest population that an area can support






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






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






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






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