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. Using public transportation






2. The loss of a natural habitat






3. Watering crops


4. Amount of land each person uses






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






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






7. Cooking oil - fuel - and medicines






8. Pollution from a factory near your school






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






10. A living part of an organism's habitat






11. Are carefully controlled






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






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






14. Chemicals that causes harm to embryos and fetuses






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






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






17. Help improve the standard of living for residents






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






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






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






21. A disease that has appeared in the human population for the first time or that has existed for a while but is increasing rapidly and spreading around the world






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






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






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






25. A nonliving part of an organism's habitat






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






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






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






29. Energy from the sun would be reflected back into space






30. A species that is at risk of extinction






31. An organism that breaks down wastes and dead organisms






32. Rising sea level






33. Sex - weight - and health issues






34. Contamination of land - water - or air






35. A consumer that eats only animals






36. Relieving a nation from repaying some of the money it owes other nations in exchange for protecting its biodiversity






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






38. Leaving a population






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






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






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






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






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






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






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






46. The practice of protecting the environment






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






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






49. Increase the stability of an ecosystem






50. Taking in carbon dioxide from the atmosphere during photosynthesis