Relative humidity. Relative humidity (RH) is the ratio of the partial pressure of water vapor to the equilibrium vapor pressure of water at a given temperature. Relative humidity depends on temperature and the pressure of the system of interest. It requires less water vapor to attain high relative humidity at low temperatures; more water vapour is required to attain high relative humidity in warm or hot air.
silver is the color of the element mercury silver is the color of the element mercury Silvery.
Mercury (Hg) occurs naturally in the environment and can be found in metallic, inorganic, and organic forms. The most common natural forms of mercury found in the environment are metallic mercury, mercuric sulfide (cinnabar ore), mercuric chloride, and methylmercury. Mercury and its compounds have a long history of human use for industrial, medicinal, cosmetic, and spiritual purposes.