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. Chemicals that cause cancer






2. The pattern of overlapping food chains in an ecosystem






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






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






5. Shift of population from countryside to cities






6. A natural pattern in which species diversity generally increases toward the equator






7. Bumps on the roots of certain plants






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






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






10. The number of different species in an area






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






12. Help improve the standard of living for residents






13. Cooking oil - fuel - and medicines






14. The process of cutting down all the trees in an area at once






15. Global phenomenon that has caused some organisms to move toward the poles and to higher altitude






16. Can result in a decrease of property damage






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






18. Water vapor and carbon dioxide that trap heat near the earth






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






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






21. A consumer that eats only animals






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






23. Chemicals that causes harm to embryos and fetuses






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






25. 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






26. By increasing the need for people to drive






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






28. This draws people from urban areas to rural areas






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






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






31. Has the highest amount of species diversity






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






33. Making direct measurements






34. The study of the natural processes that occur in the environment and how humans can affect them






35. Manage - protect and reintroduce threatened and endangered species






36. Any substance that poses a chemical hazard






37. Deals with biological hazards






38. Building up not out






39. A consumer that eats only plants






40. An organism that breaks down wastes and dead organisms






41. Sex - weight - and health issues






42. An organism that can make its own food






43. The highest level of biodiversity






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






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






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. The largest population that an area can support






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






49. Fires that are set by humans






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