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






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






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






4. 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.






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






6. All of the water found on earth.






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






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






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






10. The flow of water in the water table.






11. 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.






12. 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.






13. Organisms which produce their own food.






14. The rate at which producers create organic material.






15. A variety of species living together.






16. 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.






17. Plants taking in nitrates from the soil.






18. Modern man.






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






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






21. A type of symbiosis where one species benefit at the expense of the other.






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






23. A principle that states that two species competing for a single resource cannot coexist. One species will inevitably gain an advantage over the other - causing the looser either to migrate or to become extinct.






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






25. Organisms which create their own food out of inorganic (abiotic) substances.






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






27. 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.






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






29. 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.






30. Single-celled organisms which lack a nucleus.






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






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






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






34. Animals which eat leaves and shoots.






35. Populations characterized by small size - short lifespan - and lots of offspring.






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






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






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






39. A group of similar organisms capable of interbreeding.






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






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






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






43. Growing more than one crop at a time.






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






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






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






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






48. Consumers which eat both plants and animals.






49. All of the ecosystems on earth.






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