The image displays a bar chart showing the volume of copper smelting in 4 countries (in thousands of tons) in 2007. The task is to arrange these bars in descending order of copper smelting volumes.

Analysis of Copper Smelting Volumes:

• The bar chart shows the following volumes for each country:
• Russia: Approximately 180 thousand tons
• Mongolia: Approximately 140 thousand tons
• India: Approximately 55 thousand tons
• Laos: Approximately 40 thousand tons
• To arrange these bars in descending order of copper smelting volumes, we sort them from the highest to the lowest:
• Russia (180 thousand tons)
• Mongolia (140 thousand tons)
• India (55 thousand tons)
• Laos (40 thousand tons)

Arrangement of Bars in Descending Order:

Russia, Mongolia, India, Laos