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






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






3. Cooking oil - fuel - and medicines






4. Any substance that poses a chemical hazard






5. An organism that breaks down wastes and dead organisms






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






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






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






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






10. Has the highest amount of species diversity






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






12. A consumer that eats both plants and animals






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






14. One way zoos and aquariums help increase wildlife populations






15. By increasing the need for people to drive






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






17. Help improve the standard of living for residents






18. A consumer that eats only plants






19. The organism that does the killing in a predation interaction






20. Making direct measurements






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






22. Burning fossil fuels






23. The breaking of a habitat into smaller - isolated pieces






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






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






26. Contamination of land - water - or air






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






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






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






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






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






32. Leaving a population






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






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






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






36. Shift of population from countryside to cities






37. Rising sea level






38. Chemicals that causes harm to embryos and fetuses






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






40. The mating of animals in zoos or wildlife preserves






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






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






43. Manage - protect and reintroduce threatened and endangered species






44. The number of different species in an area






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






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






47. Moving into a population






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






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






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