Burning fuels can release pollutants into the atmosphere.
The table shows four pollutants.
| Pollutant | Source (letter) |
|---|---|
| carbon monoxide | ? |
| sulfur dioxide | ? |
| oxides of nitrogen | ? |
| particulates | ? |
Here are some possible sources.
A burning coal that contains sulfur impurities
B a gas boiler burning methane with too little oxygen
C nitrogen and oxygen from the air reacting inside a hot car engine
D diesel engines and wood-burning stoves
E photosynthesis in plants
Complete the table. Write the letter of the main source of each pollutant.
Carbon monoxide is a toxic gas.
Explain why carbon monoxide is dangerous to humans.
Sulfur dioxide and oxides of nitrogen dissolve in water in clouds.
Name the environmental problem this causes and give one effect of this problem.
Give one problem caused by particulates in the air.
51 exam-style questions on OCR GCSE Chemistry 6.3 Interpreting and interacting with earth systems, covering 6.3.1 Formation and evolution of the atmosphere, 6.3.2 The greenhouse effect and climate change, 6.3.3 Sources and problems of atmospheric pollutants, and 6.3.4 Producing potable water. Each one has a worked solution and a mark scheme showing where the marks go.