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. A relationship between two species in which both species benefit






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






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






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






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






6. 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






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






8. The amount of carbon dioxide emissions for which an individual or group is responsible






9. The loss of a natural habitat






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






11. Deals with biological hazards






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






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






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






15. A consumer that eats only plants






16. Are carefully controlled






17. A living part of an organism's habitat






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






19. The number of different species in an area






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






21. Taking in carbon dioxide from the atmosphere during photosynthesis






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






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






24. A natural resource that is not replaced in a useful time frame






25. Contamination of land - water - or air






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






27. Leaving a population






28. Chemicals that causes harm to embryos and fetuses






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






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






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






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






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






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






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






36. The disappearance of all members of a species from Earth






37. A nonliving part of an organism's habitat






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






39. The practice of protecting the environment






40. A group of organisms that are physically similar and can mate with each other and produce offspring that can also mate and reproduce






41. Building up not out






42. Organism that carries pathogens






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






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






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






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






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






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






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






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