Answer:
A.Agricultural exports
Explanation:
The Mississippi is a very important river for the United States, it is the second longest river in the country, surpassed only by Missouri. It has the third largest river basin in the world, is surpassed in size by the Amazon and Congo basins.
The Mississippi River is the main outlet for US agricultural production. The homonymous state is famous for the predominance of farms and small towns, economically dependent on agribusiness.
Around 460,000 km of rivers and lakes worldwide are estimated to have potential for inland, river and lake navigation, but the length of these waterways is estimated at 200,000 km, which is used for cargo transportation. low added value and no need for immediate delivery, but with constant flow of goods. Major cargoes include coal, oil, fuels, fertilizers, minerals, agricultural grains, and lately even containers for major ports, due to land-traffic congestion - highways and railroads. These loads are valued at two billion tons per year.
