Correct Answer: Both statement 1 and statement 2 are true, and statement 2 is the correct explanation of statement 1 .

Solution : The correct answer is (A) Both statement 1 and statement 2 are true, and statement 2 is the correct explanation of statement 1.

Statement 1 is true: Air pollution in India is indeed a major environmental concern, particularly in densely populated areas and cities. High levels of air pollution can have significant adverse effects on human health, leading to respiratory problems, cardiovascular diseases, and other health issues.

Statement 2 is the correct explanation of statement 1: The sources mentioned in statement 2, including vehicular emissions, industrial activities, and the burning of solid fuels for cooking and heating, are major contributors to air pollution in India. These sources release pollutants such as particulate matter, nitrogen oxides, sulfur dioxide, and volatile organic compounds, which contribute to the poor air quality and its detrimental effects on health.

Therefore, both statements are true, and statement 2 provides the correct explanation for statement 1 .