The opinions and prejudice of an author in writing.
I believe that those two elements greatly affect bias in history because we can never be 100% sure of everything that (may have) happened in history (especially farther in the past), so opinion can affect a historian's writings. Also, everyone is prone to some sort of prejudice, so this can also affect history.
The seven seas are the Arctic, the Atlantic, the Indian, the Pacific, the Mediterranean<span>, the </span>Caribbean<span>, and the Gulf of Mexico.</span>
Answer: "cluster" .
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