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






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






3. The amount of replacement is equal to the amount harvested






4. Chemicals that cause cancer






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






6. Using public transportation






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






8. Making direct measurements






9. A species that could become endangered in the near future






10. This draws people from urban areas to rural areas






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






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






13. Leaving a population






14. The practice of protecting the environment






15. An organism that can make its own food






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






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






18. A living part of an organism's habitat






19. The highest level of biodiversity






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






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






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






23. Watering crops


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






25. Any substance that poses a chemical hazard






26. Building up not out






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






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






29. By increasing the need for people to drive






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






31. A consumer that eats both plants and animals






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






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






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






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






36. A series of events in which one organism eats another and obtains energy






37. Causes a cooling effect


38. Pollution from a factory near your school






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






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






41. Contamination of land - water - or air






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






43. Provide wood






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






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






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






47. One way zoos and aquariums help increase wildlife populations






48. A species that is at risk of extinction






49. Manage - protect and reintroduce threatened and endangered species






50. The number of different species in an area