4.11 understand the biological consequences of pollution of the air by sulphur dioxide and carbon monoxide

SULPHUR DIOXIDE ( SO2 gas )
- is produced in the combustion of fossil fuels and also by vehicles in the combustion of petrol
- when SO2 gas is produced it reacts with water vapour in the air and forms sulphuric acid which is found in the water that condenses as clouds, this is known as acid rain.
EFFECTS OF ACID RAIN
acid rain effects plants and animals in a variety of ways

The burning of fossil fuels results in sulphur dioxide gas.
Sulphur dioxide happens mostly because of factories and cars.
Acid rain kills fish in lakes and rivers.
Carbon monoxide blocks hemoglobin which can lead to death.
S02+H20 -Sulphuric acid - Acid rain.