Which statement describes the units of humidity and relative humidity
Humidity is typically measured in grams of water vapor per cubic meter of air (g/m³) or in grams of water vapor per kilogram of dry air (g/kg).
Relative humidity is expressed as a percentage and represents the amount of water vapor in the air compared to the maximum amount of water vapor the air can hold at a particular temperature and pressure. For example, if the relative humidity is 50%, it means the air is holding half of the maximum amount of water vapor it can hold at that temperature and pressure.