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 organism that is killed and eaten by another organism






2. Shift of population from countryside to cities






3. A consumer that eats both plants and animals






4. Provide wood






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






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






7. The pattern of overlapping food chains in an ecosystem






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






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






10. Any substance that poses a chemical hazard






11. Can result in a decrease of property damage






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






13. A carnivore that feeds on the bodies of dead organisms






14. The practice of protecting the environment






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






16. Cooking oil - fuel - and medicines






17. Habitat change and fragmentation






18. Watering crops


19. An organism that obtains energy by feeding on the other organisms






20. Using public transportation






21. Making direct measurements






22. The loss of a natural habitat






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






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






25. Manage - protect and reintroduce threatened and endangered species






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






27. Organism that carries pathogens






28. The mating of animals in zoos or wildlife preserves






29. Bumps on the roots of certain plants






30. A consumer that eats only animals






31. Transportation systems - communications systems - water services - power supplies - and schools






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






33. One way zoos and aquariums help increase wildlife populations






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






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






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






37. Deals with biological hazards






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






39. Resulted in suppression of all forest fires


40. Amount of land each person uses






41. A natural resource that is not replaced in a useful time frame






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






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






44. Building up not out






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






46. Leaving a population






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






48. A species that is at risk of extinction






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






50. Fires that are set by humans