The Mississippi River has many small tributaries, but its primary tributaries are the Ohio River and the Missouri River. The Amazon River also has a large number of tributaries, including the Rio Negro, which is one of the largest rivers in the world in terms of volume. The Nile’s primary tributary is the Atbara River.
Culture is what feels/is comfortable for a state, country, or city. There isn't an exact culture for all the people on this planet.
Answer: B
Explanation: I think this is the correct answer
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The Indian Ocean is the ocean that is east of Africa and west of Australia.