Soils are chemically different from the rocks and minerals from which they are formed in that soils contain less of the water soluble weathering products, calcium, magnesium, sodium, and potassium, and more of the relatively insoluble elements such as iron and aluminum.olloidal particles are so small (2:1 clays, while kaolinite is a 1:1 clay mineral. Clays having a layer of aluminum oxide (octahedral sheet) sandwiched between two layers of silicon oxide (tetrahedral sheets) are called 2:1 clays.
A civilian is a person who is not a military member, a law enforcement officer, a firefighter, or a suspect / criminal. Under the laws of war (also known as international humanitarian law), the term includes one who is not a member of the military and not a combatant in situation of armed conflict. civilian is any person who does not belong to one of the categories of persons referred to in Article 4A(1),(2),(3) and (6) of the Third Convention and in Article 43 of this Protocol. In case of doubt whether a person is a civilian, that person shall be considered to be a civilian. 2.
civilian - associated with civil life or performed by persons who are not active members of the military; civilian clothing; civilian life. military - associated with or performed by members of the armed services as contrasted with civilians; military police. Translations.