The answer is "It aided the growth of heavy industries". For the fact that Midwestern cities are found on the shores of the Great lakes or along major rivers, it gives businessmen or industries to ship their products in and out of different places with the help of the different bodies of water surrounding their cities.
Tuesday #1 is northern and and Western Hemisphere
Answer:a precise and unambiguous description of the meaning of a mathematical term. It characterizes the meaning of a word by giving all the properties and only those properties that must be true.
Theorem — a mathematical statement that is proved using rigorous mathematical reasoning. In a mathematical paper, the term theorem is often reserved for the most important results.
Lemma — a minor result whose sole purpose is to help in proving a theorem. It is a stepping stone on the path to proving a theorem. Very occasionally lemmas can take on a life of their own (Zorn’s lemma, Urysohn’s lemma, Burnside’s lemma, Sperner’s lemma).
Corollary — a result in which the (usually short) proof relies heavily on a given theorem (we often say that “this is a corollary of Theorem A”).
Proposition — a proved and often interesting result, but generally less important than a theorem.
Conjecture — a statement that is unproved, but is believed to be true (Collatz conjecture, Goldbach conjecture, twin prime conjecture).
Explanation:
Liberia.
It comes from the Latin word liber which means free and Liberia is a country in West Africa.