_________ is the division of a plot plan for large areas to be excavated or graded into smaller squares or grids.
Gridding
________ is any construction cut, cavity, trench, or depression in the surface of the earth formed by equipment to create the engineering improvements.
Excavation
_______ ________ are changes to a site that include footings, foundations, basements, and other below ground work.
Engineering improvements
________ is the process of lowering high spots and filling in low spots of earth at a construction site.
Grading
A ______ _______ is a line connecting points on a topographical map where existing and planned elevations are equal.
zero line