Can you explain how the US expanded its power during the early 1900s, and how they were involved in WWI PLEASE HELP Me pl

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Explanation:

United States Maritime Expansion across the Pacific during the 19th Century. The resulting agreement, the Treaty of Wangxia, was ratified in 1844, and soon thereafter U.S. ministers and consuls took up residence in China’s capital and port cities.

Hopes this helps I guess

answer; /// i believe its (slavery) to be the correct check luck.

b) trade is easy because of the direct line between their major ports. bilateral trade reached 89,6 thousand million.