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3 marksEnvironmental and Economic Costs of Energy Use

CAPE Environmental Science Unit 2 · 2017 · Paper 2 · Question 4(b)

At a conference, a speaker states that "the world's socioeconomic dependency on fossil fuel combustion will make it difficult to reduce carbon dioxide emissions". Explain this statement.

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  1. 4(a)Electricity is described as a secondary energy source. State ONE primary energy source and distinguish between 'primary' and 'secondary' sources of energy.[3 marks]
  2. 4(c)(i)Define the term 'efficiency of conversion' as it refers to energy.[2 marks]
  3. 4(c)(ii)A Caribbean family consumes 7 200 MJ of energy per year on household lighting using incandescent light bulbs. Only 432 MJ of the energy used is actually…[4 marks]
  4. 4(d)(i)What was the price of gasoline in 2000?[1 mark]
  5. 4(d)(ii)Describe the OVERALL trend illustrated in the graph.[3 marks]
  6. 4(d)(iii)The government of this Caribbean country is considering encouraging the use of electric vehicles as a means of reducing energy spending. Some opponents of the…[4 marks]

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