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






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






3. The number of different species in an area






4. By increasing the need for people to drive






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






6. A consumer that eats both plants and animals






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






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






9. Bumps on the roots of certain plants






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






11. Watering crops

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






13. One way zoos and aquariums help increase wildlife populations






14. 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






15. A species that could become endangered in the near future






16. Has the highest amount of species diversity






17. Transportation systems - communications systems - water services - power supplies - and schools






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






19. Burning fossil fuels






20. The mating of animals in zoos or wildlife preserves






21. Building up not out






22. Can result in a decrease of property damage






23. The probability that a hazard will cause a harmful response






24. Habitat change and fragmentation






25. An organism that breaks down wastes and dead organisms






26. The pattern of overlapping food chains in an ecosystem






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






28. Sex - weight - and health issues






29. Organism that carries pathogens






30. Manage - protect and reintroduce threatened and endangered species






31. Moving into a population






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






33. Causes a cooling effect

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






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






36. A consumer that eats only plants






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






38. Deals with biological hazards






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






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






41. Illegal killing or removal of wildlife from their habitats






42. A nonliving part of an organism's habitat






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






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






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






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






47. A consumer that eats only animals






48. Leaving a population






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






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