The economy can be classified according to the economic activities it performs. It is roughly divided into three sectors, namely the primary, secondary, and tertiary. The primary sector covers activities that involve production of raw materials from natural resources such as mining, fishing, agriculture, and quarrying. The secondary sector involves manufacturing activities that utilise products made from the primary sector and transform them into other products such as sugar from sugarcane, iron and steel from iron ore, and automobiles from metals and alloys. The tertiary industry comprises all service-related activities such as healthcare, education, banking, and telecommunication.