ALBEDO

         The amount of sun's rays that is reflected by an earthly body is called albedo. The word albedo is derived from albus, a Latin word for white.

           Albedo is a measure of how much light that hits a surface is reflected without being absorbed.  Something that appears white reflects most of the light that hits it and has a high albedo, while something that looks dark absorbs most of the light that hits it, indicating a low albedo.

           It is the reflection of a certain area of earth, like snow and mountains, on the surface. 
For example, the albedo of snow covered mountains hurts the eyes. 

Material	Albedo values (% reflected)
Fresh snow	80% - 95%
Light roof	35% - 50%
Grass	25% - 30%
Bricks and stone	20% - 40%
Concrete dry	17% – 27%
Water bodies	10% - 60%
Forest	10% - 20%
Crops and grassland	10% - 25%
Dark roof	8% - 18%
Asphalt	5% - 10%
Earth’s albedo (average)	31%