Why is calcium hydroxide spread on fields?

Why fastidious organism grow poorly in chemically defined medium? During prophase of meiosis 1 chromosomes from the organisms father called paternal chromosomes pair up with homologous maternal chromosomes donated by the mother to form a bythis process is called? How many years rebuild new Orleans from hurricanes? What is a situation in which allele frequencies remain constant? Can the equation of kinetic energy of a gas be applied to a flame? When did Great Fire of Warwick happen? Is pumice inorganic? How many days a year are on Jupiter? Ph color for 1? Are iron rich igneous rocks denser or less dense than silica rich igneous rocks? What is the time zone in Los Algodones Mexico? How are joints like levers? Fertilization results in formation of what? Geographers use a formed by lines of latitude and longitude to determined? What is the strong steady winds high in the atmosphere used by pilots? What is something other than dusk or dawn? Rocks in different countries? What are round or spherical arranged in clusters? Greek god Ares symbol? Is tidal power sustainable?