resource

noun:a stock or supply of money, materials, staff, and other assets that can be drawn on by organization in order to function effectively
- The company invested heavily in its human resources department.
noun:a natural asset such as minerals, forests, water, or land that can be used for economic gain
- Oil, coal, and fresh water are considered critical resources for the country's future development.
noun:a source of aid or support that may be drawn upon when needed
- Her positive attitude was her greatest resource during difficult times.