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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. Watering crops

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2. Illegal killing or removal of wildlife from their habitats






3. This draws people from urban areas to rural areas






4. A consumer that eats only plants






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






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






7. Cooking oil - fuel - and medicines






8. Manage - protect and reintroduce threatened and endangered species






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






10. Habitat change and fragmentation






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






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






13. The mating of animals in zoos or wildlife preserves






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






15. The number of different species in an area






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






17. Burning fossil fuels






18. A consumer that eats only animals






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






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






21. Taking in carbon dioxide from the atmosphere during photosynthesis






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






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






24. Using public transportation






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






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






27. Chemical hazard that was once found in paint - young children are frequently tested for this






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






29. Moving into a population






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






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






32. Chemicals that causes harm to embryos and fetuses






33. A species that is at risk of extinction






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






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






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






37. Bumps on the roots of certain plants






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






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






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






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






42. Has the highest amount of species diversity






43. A nonliving part of an organism's habitat






44. An organism that can make its own food






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






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






47. Increase the stability of an ecosystem






48. Are carefully controlled






49. Shift of population from countryside to cities






50. 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






Can you answer 50 questions in 15 minutes?



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