🙏 Free review 2020
Major Environmental Disasters
Required Environmental Legislation
✍️ Free Response Questions (FRQs)
🏜 Unit 1: The Living World: Ecosystems
1.1Introduction to Ecosystems
1.10Energy Flow and the 10% Rule
🐠 Unit 2: The Living World: Biodiversity
2.5Natural Disruptions to Ecosystems
👪 Unit 3: Populations
3.0Unit 3 Overview: Populations
3.1Generalist and Specialist Species
3.2K-Selected r-Selected Species
🌏 Unit 4: Earth Systems and Resources
4.3Soil Composition and Properties
🏖 Unit 5: Land and Water Use
5.7Meat Control Methods
5.9Impacts of Mining
⚡️ Unit 6: Energy Resources and Consumption
6.0Unit 6 Overview: Energy Resources and Consumption
💨 Unit 7: Atmospheric Pollution
7.1Introduction to Air Pollution
7.5Indoor Air Pollutants
7.6Reduction of Air Pollutants
♻️ Unit 8: Aquatic and Terrestrial Pollution
🔥 Unit 9: Global Change
9.1Stratospheric Ozone Depletion
9.4Increases in the Greenhouse Gases
karla jauregui sandoval
May 29, 2020
Historically Solar Energy can date back to 7th century BC when magnifying glass material was used to ignite fires for heat energy. With modern applications to solar energy we have modernized the use of solar energy with PV cells and solar panels.
Image Courtesy of The Verge
Photovoltaic cells (PV cells) are electrical cells that allow the light energy of the sun to be converted into electricity. PV cells are usually made with purified silicon and traces of metals that allow them to act as semiconductors. The process of generating electricity with these cells include
Sunlight photons hit the solar cell which then knocks electrons loose from their atoms. If conductors are attached to the positive and negative sides of a cell an electrical circuit forms. The movement of electrons in the circuit equals electricity! Because each cell only produces a small quantity of electricity, many cells are then wired together to an electrical grid on a panel.
Watch: Environmental Science
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