It should be a barometer but then again I could be wrong, hope im right!
Relative humidity is a measure of how much moisture is in the air relative to the maximum amount of moisture the air can hold at a specific temperature. It is expressed as a percentage, with 100% indicating that the air is completely saturated with moisture.
Relative humidity is a measure of how much moisture is in the air compared to how much moisture the air can hold at a given temperature. If the relative humidity is 100%, the air is saturated and can hold no more moisture. Lower relative humidity means the air is drier and can still hold more moisture.
Temperature and moisture content are used to characterize air masses. Temperature describes how warm or cold the air mass is, while moisture content indicates how much moisture is present in the air mass.
The relative humidity of the air is a measure of how much moisture is in the air compared to the maximum amount of moisture the air can hold at a given temperature. It is expressed as a percentage and indicates how close the air is to reaching its saturation point.
If the relative humidity is high, it means that the air has a lot of moisture in it. This high moisture content can lead to feelings of stickiness or dampness in the air.
Relative humidity is a measure of how much moisture is in the air relative to the maximum amount of moisture the air can hold at a specific temperature. It is expressed as a percentage, with 100% indicating that the air is completely saturated with moisture.
humidity
If air is holding as much moisture as it can, colder air holds less than warmer.
Relative humidity is a measure of how much moisture is in the air compared to how much moisture the air can hold at a given temperature. If the relative humidity is 100%, the air is saturated and can hold no more moisture. Lower relative humidity means the air is drier and can still hold more moisture.
It measures how much moisture is in the air (humidity)
Temperature and moisture content are used to characterize air masses. Temperature describes how warm or cold the air mass is, while moisture content indicates how much moisture is present in the air mass.
If there is too much moisture in the air, the air will feel cold and damp.
saturated
saturated
If the temperature suddenly drops, the air will not be able to hold as much moisture and will become supersaturated. This excess moisture will then condense out of the air, leading to the formation of dew, fog, or even precipitation, depending on how much moisture is in the air.
When you say that there is moisture in the air it pretty much means water in the air.It is a physical change, as no new products have been formed.
The air is carrying much moisture.