A construction crew has been tasked with removing the foundation of an old building, as well as the old electrical wiring and gas lines buried underneath the site where a new building will be built. What process are they engaging in?

Removing the old building’s foundation and its buried wiring and gas lines is demolition: taking apart and removing existing structures and materials. Excavation means digging or moving earth, while grading shapes and levels the ground. Site investigation is the inspection of a site before construction.

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