images secondary sector (introduction and energy production)
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Secondary Sector
Industry
Mining in South Africa
Power station in South Africa
Expansion of the Panama Canal
Energy Production
Construction
Origin of raw materials
Origin of raw materials
Solar power station in Andalucía, Spain
Geothermal power station in Iceland Source: Gretar Ívarsson - Wikipedia
Wind farm in The Netherlads
The Three Gorges Dam on the Yangtze River, China