The factors that contribute to South Asia's environmental challenges include:
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Pollution from motor vehicle exhaust - This is a significant issue in urban areas, leading to poor air quality and health problems.
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Drought from low rainfall - Many regions in South Asia face water scarcity and agricultural challenges due to irregular rainfall patterns and drought conditions.
While destruction from earthquakes and ash from volcanic eruptions can cause environmental issues, they are less frequent and tend to be more localized compared to ongoing pollution and drought challenges that affect a larger population and have more widespread implications.
So, the key factors most relevant to South Asia's environmental challenges from those listed are:
- Pollution from motor vehicle exhaust
- Drought from low rainfall