This document summarizes the three main economic sectors: primary, secondary, and tertiary.
The primary sector involves direct use of natural resources, including agriculture, fishing, forestry and mining. The secondary sector is manufacturing through industries that process primary products into manufactured goods. The tertiary sector provides services rather than end products, such as healthcare, education, and tourism.
The document provides pictures to illustrate each sector and lists some example activities for each. It concludes with a pie chart showing the breakdown of economic sectors in Spain, with tertiary being the largest at 65% and primary the smallest at 5%.