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. Leaving a population






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






3. Using public transportation






4. By increasing the need for people to drive






5. The loss of a natural habitat






6. The study of how living things interact with each other and their environment






7. Fires that are set by humans






8. Making direct measurements






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






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






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






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






13. Are carefully controlled






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






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






16. Manage - protect and reintroduce threatened and endangered species






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






18. Organism that carries pathogens






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






20. Building up not out






21. Can result in a decrease of property damage






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






23. A consumer that eats only plants






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






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






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






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






28. Deals with biological hazards






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






30. Increase the stability of an ecosystem






31. The mating of animals in zoos or wildlife preserves






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






33. Causes a cooling effect

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






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






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






37. Burning fossil fuels






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






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






40. The largest population that an area can support






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






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






43. Trees - grass - crops - wetlands - water - building and pavements






44. Pollution from a factory near your school






45. An organism that breaks down wastes and dead organisms






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






47. Amount of land each person uses






48. Habitat change and fragmentation






49. 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






50. One way zoos and aquariums help increase wildlife populations