Plumber

The automotive industry comprises a wide range of companies involved in the design, auto development, manufacturing, and selling.

Materials science principles to design, analyze, manufacture, and maintain mechanical systems. It is one of the oldest disciplines.

Professional discipline deals with designing, planning, construction and infrastructures management such as roads, tunnels, bridges.

Petroleum and natural gas are nonrenewable sources of energy, a liquid found underground that can be used to make gasoline.