An apple
The country that produces the most calculators is India.
Saskatchewan
Vatican City, unless you intended this to be a pun.
Italy produces the most lamborghinis
The country that produces the most synthetic diamonds is the United States. The Apollo Diamond Company in Boston Massachusetts produces the most according to Smithsonian.com
Thailand grows the most fruit.
Uganda produces the most bananas.
In Europe, Poland produces the most coal.
China produces the most with the U.S.A in a close second
Seedless Produces Fruit
The country that produces the most greenhouse gases per square kilometer is Japan. This country is closely followed by the United Kingdom. The country that produces the most greenhouse gases per capita is Qatar.