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






2. The pattern of overlapping food chains in an ecosystem






3. Cooking oil - fuel - and medicines






4. Leaving a population






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






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






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






8. Are carefully controlled






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






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






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






12. An amount of a renewable resource that can be harvested regularly without reducing the future supply






13. Using public transportation






14. The practice of protecting the environment






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






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






17. Making direct measurements






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






19. A form of decision-making concerned with the allocation and conservation of natural resources






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






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






22. Bumps on the roots of certain plants






23. Chemicals that causes harm to embryos and fetuses






24. Pollution from a factory near your school






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






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






28. The largest population that an area can support






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






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






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






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






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






34. Moving into a population






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






36. Help improve the standard of living for residents






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






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






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






40. Organism that carries pathogens






41. Businesses are arranged in a long row along a roadway - with no main community






42. The highest level of biodiversity






43. Chemicals that cause cancer






44. A consumer that eats only plants






45. Any substance that poses a chemical hazard






46. Can result in a decrease of property damage






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






48. By increasing the need for people to drive






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






50. Building up not out