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The pollution of air caused by burning petroleum fuels (like petrol and diesel) in vehicles can be controlled by fitting a device X in the exhaust system of vehicles. (a) Name the device X. (b) How does this device help in controlling air pollution? |
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Answer» The pollution of air caused by burning petroleum fuels (like petrol and diesel) in vehicles can be controlled by fitting a device X in the exhaust system of vehicles. (a) Name the device X. (b) How does this device help in controlling air pollution? |
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