What Causes Tongue Disorders? Hairy tongue and discolored tongue (in which papillae, the small projections on the tongue, become elongated or darkened) may be caused by tobacco, foods or medications such as antibiotics. Poor oral hygiene is a contributing factor.
Soil moisture is the amount of water contained in the soil after precipitation seeps into the ground. 1.The degree to which water clings to the soil is the most important soil water characteristic to a growing plant. This concept is often expressed as soil moisture tensi â¦ on.
Water retention curve is the relationship between the water content, Î¸, and the soil water potential, Ï. This curve is characteristic for different types of soil, and is also called the soil moisture characteristic. It is used to predict the soil water storage, water supply to the plants (field capacity) and soil aggregate stability.