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. Energy from the sun would be reflected back into space






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






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






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






5. Increase the stability of an ecosystem






6. A consumer that eats only plants






7. A species that is at risk of extinction






8. A region that has many different types of organism is described as having a high level of this






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






10. Any substance that poses a chemical hazard






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






12. An organism that can make its own food






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






14. Chemicals that cause cancer






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






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






17. The series of changes that occur in an area where no soil or organisms exist






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






19. A group of organisms that are physically similar and can mate with each other and produce offspring that can also mate and reproduce






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






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






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






23. The highest level of biodiversity






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






25. A consumer that eats only animals






26. By increasing the need for people to drive






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






28. Causes a cooling effect

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29. Using public transportation






30. The form of transportation that uses the most energy per passenger mile






31. Deals with biological hazards






32. Has the highest amount of species diversity






33. Are carefully controlled






34. Help improve the standard of living for residents






35. This draws people from urban areas to rural areas






36. Contamination of land - water - or air






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






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






39. Habitat change and fragmentation






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






41. A living part of an organism's habitat






42. Cooking oil - fuel - and medicines






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






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






45. Shift of population from countryside to cities






46. Bumps on the roots of certain plants






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






48. Soil - fresh water - wild animals - and timber






49. Amount of land each person uses






50. The loss of a natural habitat