Why is Zheng He overshadowed by the European explorers of the late 15th and 16th century?

Brainliestttme : ) how did the marshall plan impact the european economy in the post-world war ii era?

The person who has the job of maintaining order in the house is the sergeant at arms. majority whip. speaker of the house. president of the house.

1. what potential advantages could companies like standard oil offer consumers?