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| Q. |
The gas causing acid rain in an industrial area is - |
| A. | Carbon dioxide |
| B. | Carbon monoxide |
| C. | Sulphur dioxide |
| D. | Methane |
| Answer» C. Sulphur dioxide | |
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Explanation: 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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