05-03_task (1)
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Auburn University *
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1000-04
Subject
Geography
Date
Dec 6, 2023
Type
docx
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2
Uploaded by SuperProtonHyena19
Name:
Hudson Daniel
Date:
11/27/23
School:
Bejamin Russell
Facilitator:
Mrs. Freeman
5.03 Biomass and Geothermal Energy
Directions: Answer the following questions.
1.
Why is biomass energy considered a type of potential energy before it is burned?
Biomass energy is considered a type of potential energy before it is burned because it
represents stored solar energy in the form of organic matter. Plants capture energy from
the sun through photosynthesis, converting carbon dioxide and water into organic
compounds. These organic compounds, such as wood, crop residues, or animal waste,
store the solar energy absorbed during their growth. When biomass is burned, the stored
energy is released as heat, converting the potential energy into a usable form. The term
"potential energy" in this context reflects the stored energy content within the biomass
before any combustion or conversion processes take place.
2.
List two example of biofuels that can be used to do work—i.e. generate electricity or
power automobiles.
1. Biodiesel: Biodiesel is a biofuel produced from renewable sources such as vegetable
oils, animal fats, or recycled restaurant greases. It serves as an alternative to traditional
diesel fuel and can be used to power diesel engines in various applications, including
automobiles, trucks, and generators. Biodiesel combustion produces fewer emissions and
is considered a more environmentally friendly option compared to conventional diesel.
2. Bioethanol: Bioethanol is a biofuel commonly derived from crops like corn, sugarcane,
or cellulosic biomass. It is used as a fuel additive or blended with gasoline to power
internal combustion engines in automobiles. Bioethanol is a renewable energy source that
reduces dependence on fossil fuels and contributes to lower greenhouse gas emissions,
making it a viable option for sustainable transportation fuels.
3.
In two to three sentences, describe how landfill gas is “produced” and what carbon
compound makes up landfill gas?
Landfill gas is produced as a byproduct of the decomposition of organic waste in
landfills. As organic materials break down, microorganisms generate landfill gas, which
primarily consists of methane (CH4) and carbon dioxide (CO2). Methane is the
predominant carbon compound in landfill gas, making it a significant contributor to
greenhouse gas emissions if not properly managed or captured.
4.
Where is geothermal energy generated? Name two natural phenomena that are results of
this energy.
Geothermal energy is generated beneath the Earth's surface, primarily in areas with high
levels of volcanic or tectonic activity. Two natural phenomena resulting from geothermal
energy are geysers and hot springs. Geysers are eruptions of hot water and steam, while
hot springs are natural pools of warm water heated by the Earth's internal heat. Both
phenomena showcase the release of geothermal energy from the Earth's interior.
5.
Is geothermal energy readily available in all areas? Where in the United States are
geothermal reservoirs the most abundant and reliable? Explain why they are more
abundant and reliable in these areas.
No, geothermal energy is not readily available in all areas. The most abundant and
reliable geothermal reservoirs in the United States are found in the western part of the
country, particularly in states like California, Nevada, and Oregon. These areas have a
higher concentration of geothermal resources due to their proximity to tectonic plate
boundaries and volcanic activity. The movement of tectonic plates and the presence of
magma reservoirs near the Earth's surface create conditions conducive to the
development of geothermal reservoirs, making these western states more abundant and
reliable sources for geothermal energy.
6.
List 1 advantage and 1 disadvantage for biomass energy.
Advantage of Biomass Energy: Renewable Resource: One significant advantage of
biomass energy is that it is derived from organic materials, making it a renewable and
sustainable energy source. Biomass can be continually replenished through the growth of
plants and other organic matter.
Disadvantage of Biomass Energy: Land Use and
Competition: A notable disadvantage is the potential competition with food crops for
arable land. Large-scale biomass production for energy may lead to the conversion of
agricultural land, raising concerns about food security and biodiversity loss. Careful land-
use planning is essential to mitigate these challenges.
7.
List 1 advantage and 1 disadvantage for geothermal energy.
Advantage of Geothermal
Energy: Low Greenhouse Gas Emissions: One significant advantage of geothermal
energy is its low greenhouse gas emissions. Compared to fossil fuels, geothermal power
generation produces minimal carbon dioxide emissions, contributing to efforts to mitigate
climate change and reduce overall environmental impact.
Disadvantage of Geothermal
Energy: Location Dependency: A notable disadvantage is the location dependency of
geothermal energy. It is most viable in regions with high geothermal resources, such as
areas with volcanic or tectonic activity. Geothermal power plants are not practical or cost-
effective in regions where these resources are scarce, limiting the widespread
applicability of geothermal energy.
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