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






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






3. A community of similar living organisms largely affected by the area's climate.






4. An extinct hominid species believed to exhibit the first example of full-time bipedalism.






5. The crust and upper mantle of the earth.






6. Evolution in one organism due to change in a related organism.






7. An act which set standards for the amount of pollution in water.






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






9. Organisms which consume autotrophs for food.






10. A group of similar organisms capable of interbreeding.






11. 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.






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






13. The flow of water in the water table.






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






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






16. The combination of evaporation from the ocean - lakes - and other bodies of water and transpiration - the loss of water from plants.






17. A UN conference that addressed the growing population problem.






18. Species which serve key roles in an ecosystem. The absence of these important organisms is detrimental to the surrounding area.






19. Consumers which eat decomposing organic material.






20. An international protocol designed to stabilize global warming.






21. 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.






22. An especially potent greenhouse gas emitted during production and transportation of fossil fuels - decomposition of organic matter - and herds of livestock.






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






24. All of the ecosystems on earth.






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






26. A type of symbiosis where each species will benefit from interacting with the other.






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






28. The process of a gas transforming into a liquid.






29. The study of the interaction between organisms and their environment.






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






31. A greenhouse gas. Although it is a natural part of the carbon cycle - the atmospheric concentration of this gas has increased due to the burning of fossil fuels.






32. Single-celled organisms which lack a nucleus.






33. Consumers which eat only other animals.






34. Biomes with less than 10 inches of rain a year. Foliage is scarce in these areas - and remaining plants and animals work hard to conserve the little water they receive.






35. The spraying of pesticides to keep produce from any injuries or damage.






36. The loss of water vapor from leaves.






37. Any living thing on earth.






38. The rate at which producers create organic material.






39. A transitional area between two different ecosystems.






40. The process of planting different plant species right next to each other to maximize one's yield.






41. A layer of gasses surrounding the earth.






42. The decomposition of organic nitrogen into inorganic ammonium. This process is also called mineralization.






43. The biggest atmospheric layer. Without ozone - UV radiation causes ionization and the auroras in this layer.






44. Organisms with a nucleus.






45. Consumers which eat both plants and animals.






46. An act which established and enforced acceptable levels of air pollution.






47. The conversion of nitrates into nitrogen gas.






48. An unstable form of oxygen which protects the earth from UV radiation. Although naturally occurring in the stratosphere (upper atmosphere) - in the lower atmosphere this gas acts as a pollutant.






49. Growing only one crop at a time.






50. Also called that water cycle - this process describes the cycling of water throughout the environment. The stages of this cycle are evaporation - condensation - transportation - precipitation - infiltration and percolation - and run off.