Industry, sector and description for Universal Display. Universal Display researches, develops, and sells organic light emitting diode (OLED) technologies and materials for the flat-panel display industry.
The first requirement for all master horizons other than O horizons is that they are composed mostly of mineral material. It is very important to be able to differentiate organic from mineral material. Dark color of the A horizon is due to the mixing of humus with mineral.
In soils developed from sandy parent material, the A horizonmay be a little darker than its parent material, but the B horizon tends to have asimilar color, texture, and chemical composition.ClimateClimate is a major factor in determining the kind of plant and animal life on and inthe soil.