Alfred Wegener hypothesis of continental drift was replaced in 1967 by plate tectonics. Today, the theory of plate tectonics is widely, this theory explains the structure of the earth's crust and many associated phenomena as resulting from interaction of rigid lithospheric plates that move slowly over the underlying mantle.
Battle of Gaugamela, also called Battle of Arbela (Oct. 1, 331 bc) battle in which Alexander the Great completed his conquest of Darius III's Persian empire. It was an extraordinary victory achieved against a numerically superior army on ground chosen by the Persians.
According to the doctrine of separation of powers, the U.S. Constitution distributed the power of the federal government among these three branches, and built a system of checks and balances to ensure that no one branch could become too powerful.
Answer:
A
Explanation:
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<span> Technology culture( i think)</span>