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 has a dark gray surface that is broken up by large and small craters. With occasional lighter gray color pieces, the overall color of Mercury s surface is just textures of gray. If you look at a picture of the Moon and the picture of the planet Mercury, you can find that they look very similar.he moon, unlike Mercury, has lot of darker areas, or what astronomers call seas. It is because the Moon has a lot of lava flows that creates those dark areas. Also, the Moon has more variety of colors compared to Mercury.