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DSST Environment And Humanity

Subjects : dsst, science
  • Answer 50 questions in 15 minutes.
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  • Match each statement with the correct term.
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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 international convention which created the framework for protecting the ozone layer.

2. 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.

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

4. Consumers which eat both plants and animals.

5. Any living thing on earth.

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

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

8. An agency created to establish regulations concerning pollutants to protect humans and the environment.

9. An extinct hominid species with near the same brain capacity as modern man believed to use fire and stone tools - live a hunter/gatherer lifestyle - and speak a language.

10. The spraying of pesticides to prevent a pest problem before it happens.

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

12. A layer of gasses surrounding the earth.

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

14. 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.

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

16. A transitional area between two different ecosystems.

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

18. A UN conference held in Rio de Janeiro. The conference decided to protect biodiversity - reduce pollution emissions and greenhouse gasses - and promote sustainable development.

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

20. Animals which eat leaves and shoots.

21. An international organization designed to promote free trade between countries.

22. 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

23. Organisms which produce their own food.

24. Organisms with a nucleus.

25. An international protocol designed to stabilize global warming.

26. The process of a substance passing directly from the solid phase to the gaseous phase - and vice versa.

27. Average expected birth rate for 1 -000 women.

28. The process of planting trees in between other crops.

29. The second atmospheric layer. The ozone layer is found here - increasing the temperature with altitude.

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

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

32. A shubland found primarily in the South-Western United States and Mexico. Fire plays a predominant role in the life-cycle of the plants in this area - the seeds of which will sprout only after a fire.

33. Grasslands with short - widely spaced trees and no canopy - allowing for an unbroken layer of grasses beneath.

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

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

36. A forest found in temperate regions with warm summers - cool winters - and plenty of rainfall. These kinds of forests are characterized by evergreens and deciduous trees.

37. A community of species interacting with their nonliving (abiotic) environment.

38. Forests found in the northern regions of North America - Europe - and Asia characterized by freezing winters and warmer summers. These forests lie just below the tree line.

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

40. Organisms which thrive in low nutrient environments and usually have slow growth rates.

41. The cloudiness of a liquid due to small suspended particles.

42. Growing more than one crop at a time.

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

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

45. The conversion of nitrates into nitrogen gas.

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

47. The amount of variation among organisms living in a particular ecosystem. The loss of this key characteristic leads to a reduction in ecosystem efficiency and the ability of species to adapt to new situations.

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

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

50. The loss of water vapor from leaves.