The airplane was invented by the Wright brothers as a result of

A) their clever mechanical skills.
B) a burst of Yankee ingenuity.
C) systematic scientific study and experimentation.
D) mechanical skill and a sudden stroke of genius.

Answer: C

Political Science

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All of the following factors affect the cost of food except for ______.

a. nutritional quality b. production limitations c. increased investor speculation d. financial crises

Political Science

Whose corruption did the cartoons of Thomas Nast expose?

What will be an ideal response?

Political Science