Pennsylvania
America. Kennett Square in Pennsylvania is the mushroom capital of the world.
Iowa produces the most pigs
According to available statistics, Washington is the state which produces the most apples.
Hershey, Pennsylvania produces the most chocolate
Arizona produces the most copper in the United States.
The state which produces the most gold in Australia today is Western Australia.
The state that is known for it's lobsters is Maine, so I am guessing that it produces the most lobster. :)
Texas produces the most concrete in the United States.
Texas produces the most sheep. Then, in second, comes California.
I don't know about the States. But Germany is famous for growing mushrooms.
The state that produces the most turkeys annually in the United States is Minnesota.