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  1. The gas causing acid rain in an industrial area is
    1. Carbon dioxide
    2. Carbon monoxide
    3. Sulphur dioxide
    4. Methane
Correct Option: C

The main gases responsible for causing acid rain are sulphur dioxide as well as nitrous oxides. The main sources of sulphur dioxide are metal working industries and coal-fired power stations whereas nitrous oxide is from vehicles and fuel combustion.



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