The answer would be sound waves.
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Answer:
I can answer your question for A.
Explanation:
South America and North America began to exchange goods and both of their economies prospered, and the Monroe doctrine dictated that European powers were forbidden from interfering or colonizing South America
Pablo Picasso was born October 25, 1881 and died April 8, 1973. He was 91 when he died.
Your answer is 206502077489