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






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






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






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






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






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






7. A form of management which attempts to satisfy both the needs of humans and those of wildlife in the best way possible for both parties.






8. The southern-most continent - of which 98% is ice. This continent includes 70% of the world's fresh water - and 90% of the world's ice. Although the average temperature is -49






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






10. The conversion of nitrates into nitrogen gas.






11. The flow of water in the water table.






12. Surface run-off caused by melted snow.






13. Any living thing on earth.






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






15. A type of farming where the farmer will fell and burn down trees to grow crops. After a few years - he will move on and continue the process.






16. Modern man.






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






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






19. Consumers which eat both plants and animals.






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






21. Consumers which eat decomposing organic material.






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






23. 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






24. The process of surface water entering the soil. This ensures that plants have adequate access to water.






25. Water found in estuaries. This water is a mixture of saltine ocean water and fresh water - usually from a river or stream.






26. The cycling and reusing of elements and molecules (such as water - nitrogen - and phosphorus) that are essential to life.






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






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






29. The rate at which producers create organic material.






30. 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.






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






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






33. The crust and upper mantle of the earth.






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






35. Excess water which cannot be infiltrated into the soil and instead flows along the ground.






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






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






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






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






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






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






42. Organisms which eat other organisms.






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






44. Condensed water vapor which falls to earth. This comes in many forms - such as rain - snow - ice - and hail.






45. 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.






46. 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.






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






48. A situation where a layer of warmer air traps lower - cooler air - causing pollution to collect near the ground.






49. Areas with only enough rainfall for grasses to grow. As a result - most animals are grazers - such as buffalo.






50. 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.







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