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Examine the charts above and answer each of the following questions - Leaving Cert Geography - Question 27 - 2015
Question 27
Examine the charts above and answer each of the following questions. (i) Calculate X, the percentage of energy produced by gas in 2010. (ii) Which fuel increased i... show full transcript
Worked Solution & Example Answer:Examine the charts above and answer each of the following questions - Leaving Cert Geography - Question 27 - 2015
Step 1
Calculate X, the percentage of energy produced by gas in 2010.
Answer
From the pie chart for 2010, the percentage of energy produced by gas is represented as X. Based on the data given in the chart, we have:
- Coal: 20%
- Oil: 20%
- Gas: X%
- Nuclear: 12%
- Renewables: 28%
To find X, we consider that the total percentage must add up to 100%. Therefore:
Solving for X, we get:
Hence, the percentage of energy produced by gas in 2010 is 20%.
Step 2
Which fuel increased its energy production the most between 1995 and 2010?
Answer
The fuel that increased its energy production the most between 1995 and 2010 is 'Renewables'. In the 1995 chart, the share of renewables was 9%, while in 2010 it increased to 28%. This constitutes a growth of:
28 ext{%} - 9 ext{%} = 19 ext{%}
This significant increase indicates a shift towards more sustainable energy sources.
Step 3
Explain briefly why energy production using this fuel type increased.
Answer
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Increased Demand for Clean Energy: There has been a rising global awareness and requirement for reducing greenhouse gas emissions, prompting investments in renewable energy sources such as solar, wind, and hydroelectric power.
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Technological Advancements: Innovations in technology have made the generation of renewable energy more efficient and affordable, thus encouraging its wider adoption in energy production.
Step 5
State two effects of burning fossil fuels on the environment.
Answer
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Air Pollution: The combustion of fossil fuels releases harmful pollutants into the atmosphere, contributing to health problems and environmental degradation.
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Greenhouse Gas Emissions: Burning fossil fuels produces carbon dioxide (CO2), a major contributor to climate change and global warming.