If you are looking for a sentence in that paragraph to support the main idea, I think it would be "All it requires is a good pair of sneakers-no cables, stylish outfits, or weights required. The main idea is basically that walking is a good and easy way to begin exercising, and that explains it.
<span>The three types of formal messages are: upward, downward and lateral. </span><span>An informal grapevine message is a common type of message at an organization. This happens when information is shared word of mouth from employee to employee in an unofficial manner.</span>
He taught himself math, and was a maker of almanacs, an astronomer, and an author. Need to know more? Go here : http://www.biography.com/people/benjamin-banneker-9198038
