It refers to the basic services, facilities, and installations needed for the community to function properly.

• Employment

• Needs

• Infrastructure

• Communication System

It refers to facilities and institutions which provide us with ample water resources.

• Water System

• Educational System

• Transportation System

• Communication System

This infrastructure refers to the means of transporting from one place to another.

• Water System

• Educational System

• Transportation System

• Communication System

It is a facility consisting of physical plants and equipment for dissemination of  information.

• Water System

• Educational System

• Power System

• Communication System

It is a facility where persons are confined for punishment and to protect the public or also known as prisons.

• Penal Institution

• Educational System

• Seaport and Airport

• Communication System

It is the financial, commercial, and industrial center of the Philippines.

It is considered as the largest financial and economic core of the metropolitan area.

It is regarded as the central business district of NCR or National Capital Region or also known as Metro Manila.

It is the second most imporant business district in Metro Manila. It is situated in Mandaluyong and Pasig.

All are business districts except for

• BGC - Taguig

• Manila Bay Reclamation Area- Pasay, Parañaque, and Las Piñas

• Alabang Estates, Madrigal Business Park, and Filinvest Corporate City - Muntinlupa

• Monumento - Caloocan

• Triangle Park and Eastwood City - Quezon City