Enviro Q2 Uživatelský manuál stáhnout pdf (Strana 1)

ENVIRONMENTAL SCIENCE

2012 SCORING GUIDELINES

Question 2

The Fremont School District uses oil to heat school buildings. Go Green! is a new project the

district will implement. The superintendent has declared that the district will dedicate itself

to reducing its carbon footprint. In addition to taking serious energy-conservation measures,

the district is planning to help offset its carbon dioxide emissions by raising money to help

conserve a portion of a large tract of forest land adjacent to the high school campus.

(a) Describe one alternative energy source that would reduce the carbon footprint of the

school district. Discuss one environmental benefit (other than reduced CO

emissions) and

one environmental drawback of using the alternative source instead of fuel oil.

(3 points)

One point can be earned for describing an alternative energy source that would reduce the carbon

footprint. One point can be earned for identifying an environmental benefit of the alternative source.

One point can be earned for identifying an environmental drawback of using the alternative energy

source. Acceptable examples include, but are not limited to, the following:

Description Environmental benefits/drawbacks

Wind Turbines are used to capture

energy from wind to produce

electricity.

Benefits

• Minimal habitat disruption/alteration.

• Used in agricultural areas where habitat destruction is

already complete.

• Land may also be used to raise livestock/grow crops.

• Produces no air pollution.

Drawbacks

• Often requires a large expanse of land/habitat.

• Turbines are unsightly.

• Sound/vibration is annoying.

• Turbines kill/affect migration of birds/bats.

• Requires toxic materials for production.

Nuclear Uranium/plutonium/nuclear

fission is used to create steam to

rotate turbines to produce

electricity.

Benefits

• Produces little/no air pollution (other than mining and

reprocessing).

• Reservoirs (for coolant water) provide recreational

opportunities.

Drawbacks

• Creates potential for radiation leaks/accidents.

• Unsafe storage of nuclear wastes.

Visit the College Board on the Web: www.collegeboard.org.

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Strany 1 - 2012 SCORING GUIDELINES

AP® ENVIRONMENTAL SCIENCE 2012 SCORING GUIDELINES Question 2 The Fremont School District uses oil to heat school buildings. Go Green! is a new proje

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AP® ENVIRONMENTAL SCIENCE 2012 SCORING GUIDELINES Question 2 (continued) Description Environmental benefits/drawbacks Solar Passive solar: south-

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AP® ENVIRONMENTAL SCIENCE 2012 SCORING GUIDELINES Question 2 (continued) Description Environmental benefits/drawbacks Biomass Wood, charcoal, manu

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AP® ENVIRONMENTAL SCIENCE 2012 SCORING GUIDELINES Question 2 (continued) (b) Identify TWO ecological benefits provided by intact forest ecosystems (

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Strany 12 - 2012 SCORING COMMENTARY

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