🙏 Free review 2020
Required Environmental Legislation
Major Environmental Disasters
✍️ 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
Biomass has been used since our very first ancestors, they used wood to burn it and produce heat. Now modernized, biomass energy is the burning of waste such as wood, garbage, crops, landfill gas, and alcohol fuels in order to produce heat that is converted into electricity.
Image Courtesy of The National Energy Education Project
Biomass resources are readily available but different types of species take a longer time to replenish. For example trees can grow rapidly, however if countries are extracting trees faster than they can be replenished, that will lead to deforestation.
Ethanol can be used as a substitute for gasoline. Burning ethanol does not introduce additional carbon into the atmosphere via combustion, but the energy return on energy investment for ethanol is low.
Many companies are actively working on sustainable biomass technologies to replace transportation fuels.
Watch: Environmental Science
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