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. 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.






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






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






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






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






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






7. Growing more than one crop at a time.






8. A transitional area between two different ecosystems.






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






10. 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.






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






12. 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.






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






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






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






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






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






18. Organisms which consume autotrophs for food.






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






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






21. Organisms which eat other organisms.






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






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






24. 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.






25. All of the ecosystems on earth.






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






27. Consumers which eat both plants and animals.






28. 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.






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






30. A forest characterized by clearly differentiated seasons - such as the trees loosing leaves in the fall and heavy snowfall in the winter.






31. 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.






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






33. 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.






34. All of the water found on earth.






35. Animals which eat grass and roots.






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






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






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






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






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






41. Exceptionally acidic (low pH) rain. This phenomenon is caused mainly by emissions of carbon dioxide - sulfur dioxide - and nitrogen oxide which react with water particles in the air.






42. The loss of water vapor from leaves.






43. 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.






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






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






46. The flow of water in the water table.






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






48. Any living thing on earth.






49. The process by which pollutants are carried by flowing water - such as a river.






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