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Solar Energy

APES MIDTERM 2013 SPRING

Subject: 
Environmental Science
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energy
Technology
Energy economics
Energy conversion
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Sustainable energy
Nuclear power in the United States
Solar Energy
Petroleum
Hydrogen economy
Environment
APES
environmental science

practice questions for Spring Midterm 13,14,15,16 &19 Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. ____ 1. Which of the following types of agriculture is most characteristic of developing countries? a. plantation agriculture b. traditional intensive agriculture c. traditional subsistence agriculture d. industrialized agriculture ____ 2. The plants of the second green revolution are a. giant varieties. b. slow growing. c. high-yield varieties. d. adapted to drought. ____ 3. All of the following factors contributed to a doubling of U.S. food productivity since 1940 except a. increased use of fossil fuels. b. increased amount of cultivated land. c. increased use of pesticides. d.

CH 54 Bio Notes

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Biology
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Biology
Ecology
Primary production
Biomass
Ecological efficiency
Trophic level
Solar Energy
Productivity
Ecological pyramid
Ecosystem ecology
Environment

Primary productivity aka BIOMASS B/c some ecosystems are better at converting solar energy then others, we calc PP to indicate how efficient a partic ecosys is @ convert solar energy *Expressed as a Biomass/Rate-- The dry mass of vegetation produced per unit time (g/m2/yr) Aka BIOMASS The amt of light energy converted to chemical energy in a given amt of time Gross (Total) Primary Productivity (GPP) Not all of all the chemical energy produced is available to be passed on to primary consumers Autotrophs (primary producers) use some of energy themselves for cellular respiration Total primary productivity of an autroph Total amt of energy fixed by plants Net primary productivity (NPP) [GPP] ? [Energy Used by Autotrophs] = [NPP] Expressed as biomass per square meter/yr

Solar Energy

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Environmental Science
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Energy
Energy conversion
Technology
Alternative energy
Photovoltaics
Semiconductor devices
Solar power
Photovoltaic system
Solar cell
Solar energy
Environment
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Solar Energy

Solar Energy Morgan, Dana, Lauren, Marielle Sources of the Energy The Sun! ? available sunlight varies ? the amount of energy that can be harnassed from the sun is determined by wind, temperature, and insolation (average sunlight) State of Technology two kinds of solar power: ? passive ? active photovoltaic (PV) cells: how does it work? http://www.youtube.com/watch?v=2mCTSV2f36A State of technology ? Crystalline-Silicon (c-Si) ? Thin film PV ? concentrating PV parabolic trough compact linear fresnel reflector power tower dish engine Feasibility ? Main problem with this form of energy is that it is expensive Political Issues/Laws and Standards ? RES - renewable energy standard ? incremental targets ? vary by state

Solar Energy

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Environmental Science
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Energy
Solar thermal energy
Solar energy
Alternative energy
Energy conversion
Photovoltaics
Solar power
Concentrated solar power
Compact linear Fresnel reflector
Parabolic trough
Index of solar energy articles
Solar power in the United States
Technology
Environment
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Solar Energy

Solar Energy Morgan, Dana, Lauren, Marielle Sources of the Energy The Sun! ? available sunlight varies ? the amount of energy that can be harnassed from the sun is determined by wind, temperature, and insolation (average sunlight) State of Technology two kinds of solar power: ? passive ? active photovoltaic (PV) cells: how does it work? http://www.youtube.com/watch?v=2mCTSV2f36A State of technology ? Crystalline-Silicon (c-Si) ? Thin film PV ? concentrating PV parabolic trough compact linear fresnel reflector power tower dish engine Feasibility ? Main problem with this form of energy is that it is expensive Political Issues/Laws and Standards ? RES - renewable energy standard ? incremental targets ? vary by state

Chapter 13 - Renewable Energy Sources

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Environmental Science
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Light sources
Photovoltaics
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Sunlight
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Solar Energy
Renewable Energy
Hydrothermal
Wind
Geothermal
Tidal
Green


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