Questions: Why do high winds pose a particular airborne hazard around surface mines? • Layer of loose soil at mine sites • High altitudes at mine sites • Extreme temperatures at mine sites • Proximity to hurricane zones

The answer is the first one: Layer of loose soil at mine sites.

Explanation for each option:

• Layer of loose soil at mine sites: This is the correct answer. High winds can easily pick up and carry loose soil and dust particles present at surface mines, creating airborne hazards. This can reduce visibility and pose respiratory risks to workers.

• High altitudes at mine sites: While high altitudes can have their own set of challenges, they are not directly related to the airborne hazards caused by high winds. The primary concern with high winds is the movement of loose materials, not the altitude itself.

• Extreme temperatures at mine sites: Extreme temperatures can affect working conditions but are not directly related to the airborne hazards caused by high winds. Temperature does not influence the ability of wind to carry loose soil.

• Proximity to hurricane zones: While proximity to hurricane zones can mean exposure to high winds, the specific hazard in question is related to the presence of loose soil at mine sites, not the geographical location relative to hurricane zones.

In summary, high winds pose a particular airborne hazard around surface mines primarily due to the layer of loose soil that can be easily picked up and dispersed, creating visibility and respiratory issues.