Economists classify resources, or factors of production, into four general categories. Determine whether each statement about resources is true or false. The resource category land refers to all natural resources, including fertile land, forests, mineral deposits, solar and wind energy, and water. The resource category labor refers to the mental and physical productivity of workers. The resource category capital refers to financial assets, such as bank accounts, bonds, certificates of deposits, and stocks. The resource category entrepreneurial ability refers to business skills such as the management of resources, the drive to innovate, and the willingness to bear risk.