Economic activities in which natural resources are made available for use or further processing, including mining, agriculture, forestry, and fishing. Economic activities concerned with the processing of raw materials such as manufacturing, construction, and power generation. Activities that provide the market exchange of goods and that bring together consumers and providers of services such as retail, transportation, government, personal, and professional services. The quaternary sector of the economy consists of intellectual activities. Activities associated with this sector include government, culture, libraries, scientific research, education, and information technology. Some consider there to be a branch of the quaternary sector called the quinary sector, which includes the highest levels of decision making in a society or economy. This sector would include the top executives or officials in such fields as government, science, universities, nonprofit, healthcare, culture, and the media. Process of industrial development in which countries evolve economically, from producing basic, primary goods to using modern factories for mass-producing goods. Industrialization started with the Industrial Revolution in 18th century England. Loss of activity in a region Example -Rust Belt SPIN SPIN SPIN SPIN SPIN SPIN SPIN SPIN SPIN SPIN SPIN SPIN SPIN SPIN SPIN SPIN Agglomeration ancillary activities Anthropocentric backwash effect Rosenberg, Matt. "Sectors of The Economy." About.com Geography. 14 Jan. 2007. Web. 16 May 2012. <http://geography.about.com/od/urbaneconomicgeography/a/sectorseconomy.htm>. Quizlet.com. "Quizlet." Economic Geography Vocab. Flashcards. 2012. Web. 16 May 2012. <http://quizlet.com/933022/economic-geography-vocab-flash-cards/>. Bing. "Bing." Bing. Web. 16 May 2012. <http://www.bing.com/>.