Chemistry
Acid rain is caused due to pollution of atmosphere by

Oxides of nitrogen and sulphur
Oxides of carbon and nitrogen
Oxides of nitrogen and phosphorous
None of these

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Chemistry
Ammonial is a mixture of

Aluminium powder and ammonium chloride
Aluminium powder and ammonium sulphate
Aluminium powder and ammonium nitrate
Aluminium powder and potassium nitrate

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