Minnesota<span>, </span>Wisconsin<span>, Illinois, </span>Indiana<span>, </span>Michigan<span> and </span>Ohio<span>. </span>
<span>Their progress and wealth is highly dependent on the harvests, and
the price of grain. They probably have to import some industrial
products and if they had a bad year (weather, other catastrophies, poor
technology) they can't get the necessary amount of industrial products
in exchange for their surplus e. g. in grain. </span>
Answer:
Ocean currents are carry warm and tropical waters all over the world which makes heat go toward polar regions and makes solar radiation