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The animation presents the main air, water and land routes and transport hubs.
Raw iron is produced from iron ore in iron smelters.
Machinery that pumps crude oil to the surface
Treated sewage water can be used in agriculture and industry.
Developed countries are the engines of the world economy, and they have the highest GNP as well...
Farming consists of special agricultural activities.
There are various plans for eliminating brownfield sites in cities, but there are negative...
This animation demonstrates the main sources of soil pollution.