Which two rivers were connected by the cumberland road, which was completed in 1818?
a. the missouri and mississippi rivers
b. the potomac and ohio rivers
c. the arkansas and red rivers
d. the illinois and ohio rivers

Correct answer choice is :

B) The Potomac and Ohio rivers

Explanation:

The area is home to birds such as the large blue heron and the American plain eagle. The Potomac River has performed an essential part in American history. For instance, America's first president, George Washington, lived for many years along the Potomac in Virginia. The Ohio River, which flows westward from Pittsburgh, Pennsylvania, to Cairo, Illinois, is the biggest river, by volume, of the Mississippi River in the United States. At the junction, Ohio is considerably bigger than the Mississippi and, thus, is hydrologically the mainstream of the entire river system.

incident infrared radiation is blocked. visible and ultraviolet radiation heat   earth.

earth radiates infrared radiation. infrared radiation is blocked and heats earth. visible and shortwave radiation heat earth.

earth radiates longwave radiation

longwave radiation is reflected downward longwave radiation heats earth