A sports centre is replacing an oil-fired heating system. The existing system and the replacement system each provide 1 MWh of useful heating during a test.
The table shows the emissions during each test.
| Pollutant | Existing system | Replacement system |
|---|---|---|
| carbon dioxide in kg | 310 | 270 |
| particulates in kg | 0.08 | 0.21 |
Which conclusion about using the replacement system is correct?
It adds to climate change, because more carbon dioxide is released.
It increases acid rain, because more particulates are released.
It increases harm to health, because more particulates are released.
It increases harm to health, because more carbon dioxide is released.
86 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.