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. Making direct measurements






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






3. This draws people from urban areas to rural areas






4. An organism that breaks down wastes and dead organisms






5. Rising sea level






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






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






8. Habitat change and fragmentation






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






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






11. Fires that are set by humans






12. Chemicals that causes harm to embryos and fetuses






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






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






15. Organism that carries pathogens






16. A consumer that eats only plants






17. Pollution from a factory near your school






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






19. Burning fossil fuels






20. The loss of a natural habitat






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






22. Has the highest amount of species diversity






23. A consumer that eats both plants and animals






24. Moving into a population






25. Shift of population from countryside to cities






26. Using public transportation






27. The mating of animals in zoos or wildlife preserves






28. Contamination of land - water - or air






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






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






31. A living part of an organism's habitat






32. Resulted in suppression of all forest fires


33. Causes a cooling effect


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






35. Cooking oil - fuel - and medicines






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






37. The clearing of a forest and replacing it with another land use






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






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






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






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






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






43. Building up not out






44. Leaving a population






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






46. Deals with biological hazards






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






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






49. Land that is sparsely populated and has few buildings or roads






50. Increase the stability of an ecosystem