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






2. Burning fossil fuels






3. Manage - protect and reintroduce threatened and endangered species






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






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






6. Amount of land each person uses






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






8. Leaving a population






9. Organism that carries pathogens






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






11. Contamination of land - water - or air






12. Using public transportation






13. A consumer that eats only plants






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






15. Making direct measurements






16. Moving into a population






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






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






19. An organism that breaks down wastes and dead organisms






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






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






22. A living part of an organism's habitat






23. Causes a cooling effect


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






25. Illegal killing or removal of wildlife from their habitats






26. Taking in carbon dioxide from the atmosphere during photosynthesis






27. Shift of population from countryside to cities






28. Building up not out






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






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






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






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






33. Provide wood






34. A consumer that eats both plants and animals






35. Cooking oil - fuel - and medicines






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






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






38. A consumer that eats only animals






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






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






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






42. 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






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






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






45. Can result in a decrease of property damage






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






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






48. Habitat change and fragmentation






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






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