Fertilizers and pesticides applied to crops eventually may reach underlying aquifers, particularly if the aquifer is shallow and not protected by an overlying layer of lowpermeability material, such as clay. Drinking-water wells located close to cropland sometimes are contaminated by these agricultural chemicals.
script - a written version of a play or other dramatic composition; used in preparing for a performance playscript, book dramatic composition, dramatic work - a play for performance on the stage or television or in a movie etc.
A script might contain just a very simple list of commands â or even just a single command â or it might contain functions, loops, conditional constructs, and all the other hallmarks of imperative programming. In effect, a Bash shell script is a computer program written in the Bash programming language.