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






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






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






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






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






6. This draws people from urban areas to rural areas






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






8. Bumps on the roots of certain plants






9. Causes a cooling effect

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10. The number of different species in an area






11. Provide wood






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






13. A living part of an organism's habitat






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






15. Taking in carbon dioxide from the atmosphere during photosynthesis






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






17. The highest level of biodiversity






18. Leaving a population






19. By increasing the need for people to drive






20. The mating of animals in zoos or wildlife preserves






21. Illegal killing or removal of wildlife from their habitats






22. A consumer that eats both plants and animals






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






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






25. Chemicals that cause cancer






26. One way zoos and aquariums help increase wildlife populations






27. Using public transportation






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






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






30. Contamination of land - water - or air






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






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






33. Burning fossil fuels






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






35. A close relationship between two species that benefits at least one of the species






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






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






38. A species in danger of becoming extinct in the near future






39. An organism that can make its own food






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






41. Amount of land each person uses






42. Shift of population from countryside to cities






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






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






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






47. Organism that carries pathogens






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






49. Can result in a decrease of property damage






50. Sex - weight - and health issues