Answer:
In WWI, the tank was slow and unreliable, but effective.
Explanation:
As we know WW1 brought many changes when it comes to war efforts. New techniques were introduced and among them usage pf tanks.
Those tanks were heavy and slow, but still practically unbroachable. They were used for the first time in 1916, but until the end of the war were used more frequent.
The highly organized farmers of the Ohio River Valley were called Mound Builders. They <span>were inhabitants of </span>North America<span> who, during a 5,000-year period, constructed various styles of earthen </span>mounds<span> for religious and ceremonial, burial, and elite residential purposes. </span>
