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






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






3. The loss of a natural habitat






4. Amount of land each person uses






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






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






7. This draws people from urban areas to rural areas






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






9. The largest population that an area can support






10. Habitat change and fragmentation






11. Sex - weight - and health issues






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






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






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






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






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






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






18. Chemicals that cause cancer






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






20. A nonliving part of an organism's habitat






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






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






23. A relationship between two species in which one species benefits and the other is neither helped nor harmed






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






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






26. Anything in the environment that is used by people is called a natural resource






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






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






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






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






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






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






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






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






35. A species that is at risk of extinction






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






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






38. Burning fossil fuels






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






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






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






42. Has the highest amount of species diversity






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






44. Are carefully controlled






45. Making direct measurements






46. The mating of animals in zoos or wildlife preserves






47. Provide wood






48. Manage - protect and reintroduce threatened and endangered species






49. A living part of an organism's habitat






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