How the spanish-american war launched the united states into an imperialistic world power?

When zhang qin went to explore west, he brought back stories of

Science cannot describe things that a.) are beyond imagination, experience, or human ability b.) cannot be observed, measured, or tested c.) have not been conclusively proven d.) occur without being seen, heard, or felt

Ineed answers fast how do conflict and cooperation among groups and organizations influence the development of the world? 1. choose two of the following topics: ethnicity and race, working conditions, immigration, military conflict, economic stability. 2. discuss how these two topics impact the development of countries. provide examples. 3. post your response to your teacher.