Sulfur dioxide produced by burning coal is the leading cause of what deadly phenomenon?

• Correct Answer: acid rain
• dioxide rain
• hail
• carbon rain

Explanation: Another problem with coal is that most coal contains sulfur. As it burns, the sulfur goes into the air as sulfur dioxide. Sulfur dioxide is the main cause of acid rain. Acid rain can be deadly to plants, animals, and whole ecosystems. Burning coal also puts a large number of small solid particulates into the air. These particles are dangerous to people, especially those who have asthma. People with asthma may end up in the hospital on days when particulate pollution is high.

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