An industry is a group of businesses that make or sell similar products or perform similar services. Farms are part of the agricultural industry. Factories are part of manufacturing industries. Schools are part of the educational services industry. Industries are important to every country’s economy.

The first human industry was agriculture. Most developing countries still depend on agriculture as their main industry.

Another early industry was mining, or the removal of metals and other materials from the earth. Since prehistoric times humans have mined metals to make tools and other goods.

Manufacturing industries make goods from the raw materials produced by agriculture and mining. Manufacturers make such everyday items as clothing, cars, computers, paper, and processed food. Another manufacturing industry is construction. Construction workers build houses, office buildings, roads, bridges, and sewers.

Service industries dominate the economies of developed countries. Workers in service industries do not provide actual goods. Instead

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