<h2>
Answer</h2>
One source of income for the middle colonies was fertile soil and wheat.
Answer: serving on a jury when called to do so
Explanation:
<span>Roosevelt's experiences on the frontier, fighting with the Rough Riders and public service gave him a positive reputation among Americans. People believed that as a war veteran he was brave and trustworthy. His time on the frontier showed him as interested in the well being and development of the country.</span>
<span>"C. Private firms cut canals at key points and connected
rivers" and "D. Thanks to a web of waterways, boats could reach towns they
had never been able to reach before" are both correct, although roads were beginning to be used more as well. </span>
