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प्रश्न
Which of the following problems is caused by air pollution?
विकल्प
Smog
Hepatitis
Diarrhea
Cholera
MCQ
उत्तर
Smog
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Environmental Pollution - Introduction
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
Which of the following problems is caused by air pollution?
Smog
Hepatitis
Diarrhea
Cholera
Smog