That is the Nile river and or lake victoria
The spiders in this family must have different proteins for silk flexibility in their cells. ... Protein molecules' structures affect their function and the way they connect to other molecules.
Basically Soviet artificial satellite to be placed in orbit. :)
The goods, which were moved and traded around the empire at long distance, include: salt, cotton mantels, slaves, quetzal feathers, flint, chert, obsidian, jade, colored shells, Honey, cacao, copper tools, and ornaments. Due to the lack of wheeled cars and use of animals, these goods traveled Maya area by the sea.trade in Maya civilization<span> was a crucial factor in renaming </span>Maya cities<span>. The economy was a mixed capitalist/command system combining free market trade and direct government control over areas considered vital to the population of any specific state.</span>
The correct answer is C. The closing of the western frontier.
In his 1893 published paper, The Significance of the Frontier in American History, Turner stated that while it was technically true that the frontier was closed, it was the frontier life that shaped the success of the United States. His idea, which was summarized in his frontier thesis, traced the development of the United States using the settlement of the West as a measure. He argued that early settlers were essentially Europeans; they had European values and European character, but because of the frontier experience, they had to adapt, resulting in their placing a greater value on things like ingenuity, democracy and individualism. Furthermore, it was these experiences of living out in the frontier that led to settlers becoming distrustful of authority, less artistic, and more violent.