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lesantik [10]
3 years ago
10

Choose the correct statement regarding geothermal energy. A. Ground water is heated to form hydrothermal resources, artificially

generated hot water and steam. B. Geothermal refers to heat sources on the Earth’s crust. C. Geothermal energy may not be strictly renewable since the heat at any location can eventually be depleted. D. Geothermal energy is the use of geothermal heat for the generation of magnetism.
Geography
2 answers:
Solnce55 [7]3 years ago
6 0

Answer:

C- Geothermal energy may not be strictly renewable since the heat at any location can eventually be depleted.

Explanation:

Geothermal refers to heat sources within the planet. These heat sources can eventually be depleted. For this reason, geothermal energy may not be strictly renewable.  ( study island answers )

Illusion [34]3 years ago
3 0

Answer:

B. Geothermal refers to heat sources on the Earth’s crust

Explanation:

  • The geothermal energy is the heat that is derived from the storing of energy that creates by the earth's temperature and the earth's crust is origin for this type of energy along with the radioactive decay of the elements of the crust.
  • <u>Thus said to be earth's internal heat and needs to be trapped as it can get lost during the formation stages.  </u>
  • The temperature that occurs at the earth's core and the metal zone reaches up to 4000°C and thus the high temperature causes the rocks to melt and give rise to the temperature in the plastic mantle to get activated by the convection currents that reach the surface.
  • Some examples of this geothermal energy are those of the hot spring and the rising lava or the magmas.
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Organic materials (such as food scraps and yard waste) in landfills can decompose and produce landfill gas ( LFG ) over time. Ab
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Based on the data provided:

  • LFG is used to produce electricity by using it as fuel in combustion turbines
  • the Puente Hills Landfill will emit 1.94 * 10¹⁰ cubic feet of LFG per year
  • 9.7 * 10¹⁰ cubic feet of methane is prevented from entering the atmosphere.
  • the number of households that can have their total electricity needs provided by these landfills is 1,368,925 households.

<h3>What is the process of electricity generation from LFG?</h3>

Landfill gas, LFG can be used to generate electricity.

It contains 50% methane which is used as fuel for energy generation.

The process of generating electricity from LFG is as follows:

  • It is processed to produce methane.
  • The methane produced is combined with natural gas
  • The mixture is used as fuel for combustion turbines which then drives energy generation.

<h3>How much LFG is emitted at the Puente Hills Landfill per year?</h3>

From the data given:

ii) 1 million tons of landfill emits  432,000 cubic feet of LFG per day

123 million tons of landfill waste will emit 123000000 * 432000/1000000 cubic feet of LFG per day

The Puente Hills Landfill will emit 53136000 cubic feet of LFG per day

1 year = 365.25 days

Amount of LFG emitted in 1 year = 53136000 * 365.25 cubic feet of LFG per day

Amount of LFG emitted in 1 year = 1.94 * 10¹⁰ cubic feet of LFG per year

Therefore, the Puente Hills Landfill will emit 1.94 * 10¹⁰ cubic feet of LFG per year

<h3>What is the amount of methane prevented from entering the atmosphere by burning LFG to produce electricity at the Puente Hills Landfill over a 10-year period?</h3>

Volume of LFG produced in Puente Hills Landfill in 10 years is calculated below:

1.94 * 10¹⁰ cubic feet of LFG per year * 10 years = 1.94 * 10¹¹ cubic feet of LFG

Volume of methane in 1.94 * 10¹¹ cubic feet of LFG = 1.94 * 10¹¹ * 50% Volume of methane in 1.94 * 10¹¹ cubic feet of LFG = 9.7 * 10¹⁰ cubic feet of LFG

Therefore, 9.7 * 10¹⁰ cubic feet of methane is prevented from entering the atmosphere.

<h3>How many households can have their total electricity needs provided by these landfills in the United States?</h3>

Average yearly household electricity need = 30 kWh * 365.25 days

Average yearly household electricity need = 10957.5 kWh per year

Number of households = total electricity from LFG / average household electricity use per year

Number of households = 15000000000/10957.5

Number of households = 1,368,925 households

Therefore, the number of households that can have their total electricity needs provided by these landfills is 1,368,925 households.

Learn more about LFG and electricity generation at: brainly.com/question/14391018

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In terms of the total global supply of water, how much of it is in circulation (producing storms, precipitation events, related
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Answer:

The total amount of water on the planet that is present in the <em>atmosphere</em> at any given time is about 0.001% of the total water found on Earth. This atmospheric water is responsible for all storms.

If by in storage we mean in <em>groundwater</em> then the percentage would be 1.69.

Explanation:

The overwhelming majority of all water on our planet resides in the <em>oceans</em>. These hold about 96.5% of the total.

If we only consider freshwater (water with no salt) then the greatest storage areas are <em>ice caps</em>, <em>glaciers</em>, and <em>groundwater aquifers</em>.

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<u>Answer</u>: Spring.

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