-<span>world's longest human made structure at more than four thousand miles actually
</span>-co<span>nstructed from a series of smaller walls that were connected together built
</span><span><span>
-to guard against Mongol invaders</span></span>
Explanation:
C because it runs east- west direction or neither
The scopes trial dealt with the issue of whether or not it was against religious beliefs to teach evolutionary science in schools. They were also known as the monkey trials.
Starting even before 1914, the means that a European country use to build up a strong military would be recruiting men and training them, as well as increasing the budget for the military in order to purchase for their weapons. For example, some countries built or bought ships to scare the other countries and to demonstrate power.