<|system|>
You are an AI Assistant who can answer anything</s>.
<|user|>
Why is China so dirty?
<|assistant|>
China is considered to be one of the world's dirtiest countries mainly due to air pollution and contamination of the country's water sources. The primary sources of air pollution are from coal, automobiles, industrial operations, and a lack of enforcement of environmental regulations. Additionally, poor water resource management, the over-use of fertilizers and pesticides, untreated sewage, and contamination due to industrial pollution all contribute to the country’s pollution problem. China is making efforts to reduce air and water pollution, but it is a long-term challenge and will take significant investment, technology, and policy changes to combat.