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APES EXAM REVIEW QUESTIONS WITH COMPLETE ANSWERS
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APES EXAM REVIEW QUESTIONS WITH COMPLETE ANSWERS
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APES EXAM REVIEW QUESTIONS WITHCOMPLETE ANSWERS
What is an ecosystem? - Answer-a location on earth that includes interacting living
(biotic) and non-living (abiotic) components.
What percentage of energy is lost as trophic level increases? - Answer-only 10% of
energy is transferred from one trophic level to another.
What is the Tragedy of the Commons? - Answer-The destruction of a natural habitat
known as a common that was overgrazed by sheep
The addition of a limiting nutrient to an ecosystem may lead to an algal bloom. What
effect will this algal bloom have on the oxygen content of the water? - Answer-The algae
bloom will cause the oxygen content of the water to decrease, leading to hypoxic
conditions
What has the largest impact on the resilience of an ecosystem? - Answer-The amount
of genetic biodiversity of the ecosystem.
What process of selection can be controlled most directly by humans? - Answer-
Artificial selection
what are the primary air pollutants? - Answer-Carbon Monoxide, Nitrogen Dioxide,
Sulfur Dioxide, Lead
What are the effects of acid deposition? - Answer-Lowers PH of water, Decreases
species diversity of aquatic organisms, damages statues and buildings, mobilizing
metals that are found in the water
Why do we have a seasonal fluctuation in carbon dioxide concentration? - Answer-
Photosynthesis
Name the 6 primary pollutants regulated by the Clean Air Act - Answer-sulfur dioxide,
nitrogen oxide, carbon monoxide, particulate matter, tropospheric ozone, lead
Name two anthropogenic greenhouse gases - Answer-burning fossil fuels leading to
higher carbon dioxide concentrations, farming and forestry, cement manufacture,
aerosols (CFCs)
In which atmospheric region is Ozone (O3) harmful? - Answer-troposphere
Why are CFCs so harmful? - Answer-thing out the stratospheric ozone layer which can
increase the UV-B radiation and produce a major hole in the ozone layer
, When sunlight combines with NOx, Sox, and VOC what is the result? - Answer-Ozone
(O3)
Name 3 consequences of warming temperatures to the environment? - Answer-rising of
sea levels, melting of polar ice caps, melting of permafrost, storm intensity increase,
human health affected by heat, crop damage
What is cited s the causative factor for acid deposition? - Answer-Sulfur Dioxide
What is a point source? - Answer-pollution that comes from a distinct location
What does the Clean Water Act say? - Answer-Legislation that was created in 1948 and
then hugely expanded in 1972. It sets maximum permissible amounts of water
pollutants that can be discharged into waterways. Aim: to make surface waters
swimmable and fishable
what causes cultural eutrophication? - Answer-phosphates, nitrates, and detergents
What is BOD (biochemical oxygen demand)? - Answer-amount of oxygen required for
the bacterial decomposition of organic matter in water
What types of water can acid drainage runoff pollute? - Answer-surface and
underground water
What are the three major fossil fuels? - Answer-Oil, coal and natural gas
Which fossil fuel is most commonly used in the U.S.? - Answer-Coal
What are the disadvantages of using coal? - Answer-Increase in SOx, carbon, and other
air pollutants
What is petroleum made of? - Answer-fluid of hydrocarbons, water, and sulfer
What is liquid petroleum that is removed from the ground called? - Answer-Crude oil
Name two oil spills? - Answer-BP Deepwater Horizon and the Exxon Valdez
What is Natural Gas? - Answer-it is mostly methane, ethane and propane and butane
What are the two largest uses of methane in the U.S.? - Answer-Electricity generation
and industrial processes
Which is the cleanest fossil fuel? - Answer-Natural Gas is the cleanest, but it has its
disadvantages
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