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Humidity,
| Question | Answer |
|---|---|
| Define Cloud | Collection of ice crystals and dust. Forms when air cools and condenses |
| Define Fog | Water vapor has condensed near surface of Earth because air close to the ground has cooled. |
| Define Condensation Nuclei | Solid particles in the atmosphere provides surface on which water vapor condenses |
| Define Adiabatic Cooling | temperature of air mass decreases as air mass rises and expands |
| Define advective Cooling | temperature of air mass decrease as it moves over a cold surface |
| Define Relative Humidity | Ratio of amount of water vapor in the air to the amount of water vapor it can hold to reach saturation at a given temperature |
| Define Absolute Humidity | Mass of water vapor per unit volume of air. Contains water vapor. Expressed as grams of water vapor per cubic meter of air. |
| Define Dew Point | Temperature at which the rate of condensation equals rate of evaporation. |