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. Burning fossil fuels






2. Deals with biological hazards






3. Chemicals that cause cancer






4. Sex - weight - and health issues






5. Concentrations of toxicants can be greatly multiplied with each step up the food chain






6. Have a greater sensitivity to environmental hazards than any other group






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






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






9. A consumer that eats both plants and animals






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






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






12. Has the highest amount of species diversity






13. Fires that are set by humans






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






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






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






17. Habitat change and fragmentation






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






19. Bumps on the roots of certain plants






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






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






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






23. Illegal killing or removal of wildlife from their habitats






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






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






26. An organism that breaks down wastes and dead organisms






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






28. A nonliving part of an organism's habitat






29. Pollution from a factory near your school






30. This draws people from urban areas to rural areas






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






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






33. Provide wood






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






35. Amount of land each person uses






36. Leaving a population






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






38. A close relationship between two species that benefits at least one of the species






39. Taking in carbon dioxide from the atmosphere during photosynthesis






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






41. Any substance that poses a chemical hazard






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






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






44. Cooking oil - fuel - and medicines






45. The highest level of biodiversity






46. Building up not out






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






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






49. A species that is at risk of extinction






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