The USA, by far. China is a distant second.
Iowa is the largest producer of corn in the US.
Iowa
Russia is the leading producer of coal in Europe. However, the country wholly in Europe that is the leading producer of coal is Germany.
usa leading producer of paper in the world
Zambia is the leading African producer of copper.
As of 2009, Russia was the world's leading producer of asbestos.
China is a leading producer with 1,275,384 tonnes a year
China is the world's leading producer of dolomite.
There is only one country in Australia, and that is Australia. Therefore, the leading producer of silver has to be Australia.
Russia is the leading producer of coal in Europe. However, the country wholly in Europe that is the leading producer of coal is Germany.
The United States is by far the biggest producer of maize (corn).
Australia , China, Brazil and India are the leading producer of iron or ferrous.