Test your basic knowledge |

DSST Environment And Humanity

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. Species which react quickly to an environmental change and therefore can be used to diagnose a particular ecosystem.






2. An extinct hominid species believed to have long - ape-like arms; have a brain capacity half that of modern men; and use primitive tools.






3. An influential book by Rachel Carson which helped begin the environmental movement.






4. The UN's first major conference on environmental issues.






5. Political organizations not affiliated with the government which try to bring about social change.






6. All members of a species which live in the same area.






7. Animals which eat leaves and shoots.






8. An act which called for the careful examination of new chemicals to ensure they are safe for their intended uses.






9. The oxification of ammonia by certain bacterium into nitrite and later into nitrates - which can then be used by plants.






10. Organisms with a nucleus.






11. An international convention which created the framework for protecting the ozone layer.






12. Integrating rows of trees alongside crops to provide mulch and shade - retain water in the soil - and promote sustainable land use.






13. An American environmentalist who is famous for promoting the ideas of environmental ethics and wildlife management.






14. A rainforest in the temperate zone which receives heavy rainfall.






15. The flow of water in the water table.






16. Organisms which thrive in high nutrient environments - especially those with plenty of carbon.






17. The process by which a new species is created. This process generally requires geographic isolation to prevent interbreeding between the newly emerging species and the parent species.






18. The place of an organism in an ecosystem - such as what it eats and how it interacts with other organisms.






19. The process by which the sun's energy converts liquid water to water vapor in the atmosphere.






20. The rate at which producers create organic material.






21. A greenhouse gas which also plays a key role in regulating ozone levels.






22. Single-celled organisms which lack a nucleus.






23. A type of farming where the farmer will grow crops both to fulfill his family's needs for the next year and to sell on the market.






24. All of the water found on earth.






25. An act created to protect endangered and threatened species.






26. Organisms which eat other organisms.






27. A philosophy that extends ethics to non-humans. Under this system - animals - plants - and other aspects of the environment are seen as being deserving of justice and consideration.






28. An international protocol designed to protect the ozone layer by phasing out the production of CFCs and other harmful chemicals.






29. Different species living in close contact with each other.






30. A partially enclosed part of the ocean with rivers or streams flowing into it.






31. An international protocol designed to stabilize global warming.






32. A forest near the equator with heavy rainfall and a great diversity of plant and animal life. Although a mere 2% of the earth is covered with these forests - they contain 50-80% of earth's land species.






33. An act which required the EPA to set standards for drinking water.






34. An extinct hominid species believed to be the last common ancestor between man and apes.






35. Populations characterized by large size - long lifespan - and few offspring.






36. A type of symbiosis where one species will benefit while the other will be neither benefit or be harmed.






37. A bloom of phytoplankton in a body of water caused by an abnormal increase in nutrients. This process depletes the water's oxygen level - killing off other aquatic organisms.






38. Precipitation which does not reach the soil but is instead collected by plants.






39. An act requiring federal agencies to detail the impact of proposed environmental policies.






40. The process by which certain kinds of bacteria convert atmospheric nitrogen gas into ammonia - a form accessible to living creatures.






41. Plants taking in nitrates from the soil.






42. The coexistence of two species using the same resource where the two will use the resource in different ways.






43. A transitional area between two different ecosystems.






44. The conversion of nitrates into nitrogen gas.






45. An extinct hominid species believed to have the same brain capacity as modern man and use many different weapons.






46. The amount of pests needed before spraying pesticides is economical.






47. The first atmospheric layer. Most weather and pollution occurs here - and the temperature decreases with altitude.






48. An act which protects certain lands as national parks.






49. The infiltration of harmful chemicals - particles - or biological matter into the atmosphere which endanger living organisms. Pollutants include sulfur and nitrogen oxides - ammonia - and chlorofluorocarbons. Although there are natural sources for th






50. A law designed to locate toxic waste sites - gauge their pollution level - and ensure these sites are taken care of properly.