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. Help improve the standard of living for residents






2. The mating of animals in zoos or wildlife preserves






3. Moving into a population






4. Chemicals that cause cancer






5. Amount of land each person uses






6. Habitat change and fragmentation






7. One way zoos and aquariums help increase wildlife populations






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






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






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






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






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






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






14. The disappearance of a particular population from a given area - but not from the entire species globally






15. Are carefully controlled






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






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






18. Can result in a decrease of property damage






19. Building up not out






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






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






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






23. The pattern of overlapping food chains in an ecosystem






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






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






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






27. Taking in carbon dioxide from the atmosphere during photosynthesis






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






29. Leaving a population






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






31. A consumer that eats only plants






32. Watering crops

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33. Sex - weight - and health issues






34. Has the highest amount of species diversity






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






36. Contamination of land - water - or air






37. Increase the stability of an ecosystem






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






39. Causes a cooling effect

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40. Provide wood






41. The practice of protecting the environment






42. The loss of a natural habitat






43. 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






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






45. The largest population that an area can support






46. Shift of population from countryside to cities






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






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






49. The highest level of biodiversity






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