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






2. Moving into a population






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






4. Are carefully controlled






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






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






7. Building up not out






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






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






10. 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






11. Using public transportation






12. Provide wood






13. Manage - protect and reintroduce threatened and endangered species






14. Shift of population from countryside to cities






15. Resulted in suppression of all forest fires


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






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






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






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






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






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






22. The practice of protecting the environment






23. A consumer that eats only plants






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






25. A nonliving part of an organism's habitat






26. Has the highest amount of species diversity






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






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






29. Leaving a population






30. A consumer that eats only animals






31. Burning fossil fuels






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






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






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






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






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






37. The process of changing free nitrogen gas into a usable form






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






39. Pollution from a factory near your school






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






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






42. A species that is at risk of extinction






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






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






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






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






47. The series of changes that occur in an area where the ecosystem has been disturbed - but where soil and organisms still exist






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






49. Habitat change and fragmentation






50. Chemicals that cause cancer