The two risks involved in both underground mining and surface mining are:
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Ground instability - This risk is present in both types of mining due to the disruption of soil and rock structures.
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Respiratory disease - Workers in both underground and surface mining may be exposed to dust and particulate matter, leading to respiratory issues.
Other options like UV exposure are more relevant to surface mining, high water pressure is mostly a concern in underground operations, and methane gas buildup is primarily an issue in underground mining.