A metal-processing factory burns oil in a furnace. Engineers test an exhaust-treatment process. The output of metal from the factory is the same with and without the treatment.
The table shows the total emissions from operating the furnace for one hour.
| Pollutant | Emission without treatment in kg | Emission with treatment in kg |
|---|---|---|
| sulfur dioxide | 2.40 | 0.12 |
| carbon dioxide | 680 | 700 |
An engineer claims that the treatment reduces the environmental effects caused by these emissions.
Evaluate the engineer's claim. Use data from the table.
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.