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Humidity The amount of water vapor in the atmosphere Water in the atmosphere exists in 3 main states . WATER VAPOR CLOUD DROPLETS LIQUID RAIN DROPS IMPORTANT!! : warm air can hold more water vapor than colder air!

Water Vapor is Important:

Water Vapor is Important Helps warm atmosphere Comfortable breathing – moistens respiratory passages Helps to form clouds

Measuring Humidity:

Measuring Humidity The relative humidity can change if the amount of moisture changes or if the temperature changes. RELATIVE HUMIDITY : The relative humidity tells % of water vapor

Calculating Relative Humidity:

Calculating Relative Humidity The relative humidity is the percent of saturation Saturation – 100% humidity relative humidity = actual amount of water vapor saturation amount of water vapor 100% x 100 50%

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