Category: Disambiguation // Introduction Chemistry is a large field encompassing many subdisciplines that often overlap with significant portions of other sciences. ... In chemistry and chemical engineering, a separation process is a process that transforms a mixture of substances into two or more compositionally-distinct products. ... A landscape is the character of an expanse of land. ... // Scope and intentions According to the very earliest surviving work on the subject, Vitruvius De Architectura, good buildings should have Beauty (Venustas), Firmness (Firmitas) and Utility (Utilitas); architecture can be said to be a balance and coordination among these three elements, with none overpowering the others. ... Jump to: navigation, search A wall is a usually solid structure that defines and sometimes protects space. ... A ditch is a small trench or depression usually created to drain water from low lying areas, alongside roadways or fields. ... Jump to: navigation, search Divorce or dissolution of marriage is the ending of a marriage before the death of either spouse, which can be contrasted with an annulment which is a declaration that a marriage is void, though the effects of marriage may be recognized in such unions, such as... Legal separation is a possible step towards divorce under United States law. ... Jump to: navigation, search Divorce or dissolution of marriage is the ending of a marriage before the death of either spouse, which can be contrasted with an annulment which is a declaration that a marriage is void, though the effects of marriage may be recognized in such unions, such as... Separation Mastering is a technique for mastering stereo audio. ... In mathematics, descriptive set theory is the study of certain classes of well-behaved sets of real numbers, e. ... Jump to: navigation, search In set theory, a prewellordering is a binary relation that is transitive, wellfounded, and connected. ... In mathematics, two sets are said to be disjoint if they have no element in common. ...