Non-renewable energy resources
4 marks · NormalThe table shows different energy resources with statements about their use in generating electricity.
State what is meant by a non-renewable energy resource.
Coal is one example of a fossil fuel. Describe two environmental problems caused by burning coal to generate electricity.
Explain why coal is described as a non-renewable resource.
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(a) A non-renewable energy resource is one that cannot be replaced in a human lifetime or replenished as quickly as it is used.
(b) Burning coal releases carbon dioxide, causing global warming, and releases sulphur dioxide, leading to acid rain.
(c) Coal takes millions of years to form and cannot be replaced once used within a lifetime.
Common mistakes: Giving only one environmental impact; Confusing non-renewable with renewable
Show mark scheme and worked solution
Marking points
B1 (a) · 1 mark · Correct definition of non-renewable resource.
B2 (b) · 1 mark · Any one correct environmental problem (e.g. global warming due to CO2).
B3 (b) · 1 mark · Any second correct environmental problem (e.g. acid rain due to SO2).
B4 (c) · 1 mark · Correct explanation that coal cannot be replaced once used (over human timescale).
Worked solution
a) A non-renewable energy resource is one that cannot be replaced as quickly as it is used or takes millions of years to form.
b) Burning coal releases carbon dioxide, which is a greenhouse gas and contributes to global warming. Burning coal also releases sulphur dioxide, which causes acid rain.
c) Coal is described as non-renewable because it takes millions of years to form and cannot be replaced on a human timescale.