A country wants to reduce the carbon dioxide released when it generates electricity. Which change would reduce the carbon dioxide released by the greatest amount?
Replacing gas power stations with coal ones
Replacing coal power stations with gas ones
Replacing coal power stations with wind farms
Replacing wind farms with bio-fuel power stations
40 exam-style questions on AQA GCSE Physics 1.3 National and global energy resources, covering 1.3 National and global energy resources. Each one has a worked solution and a mark scheme showing where the marks go.