Which statement best defines wind chill?

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Multiple Choice

Which statement best defines wind chill?

Wind chill describes how cold it feels to exposed skin when wind is present. The wind increases heat loss from the body through convection, so at the same actual air temperature, higher wind speeds make the temperature feel cooler and can raise the risk of hypothermia or frostbite. The thermometer would read the same air temperature in still air, but wind makes the perceived temperature drop. The other statements miss the concept: one claims the actual temperature is unaffected by wind, which isn’t true for how it feels; another ties cooling to dew point, which isn’t what wind chill measures; and the last says wind speed alone sets the temperature, ignoring the actual air temperature itself.

Wind chill describes how cold it feels to exposed skin when wind is present. The wind increases heat loss from the body through convection, so at the same actual air temperature, higher wind speeds make the temperature feel cooler and can raise the risk of hypothermia or frostbite. The thermometer would read the same air temperature in still air, but wind makes the perceived temperature drop. The other statements miss the concept: one claims the actual temperature is unaffected by wind, which isn’t true for how it feels; another ties cooling to dew point, which isn’t what wind chill measures; and the last says wind speed alone sets the temperature, ignoring the actual air temperature itself.

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