Answer:
Through the process of subduction , old, dense crust is pushed toward a deep-ocean trench . There, it sinks under lighter crust. It returns to molten rock, becoming part of the mantle again.
Explanation:
According to the author, the election of Barack Obama shows that racial inequality can persist, despite the election of a black leader. Senator Barack Obama of Illinois changed into elected president of the usa over Senator John McCain of Arizona on November 4, 2008. Obama have become the forty fourth president, and the first African American to be elected to that office.
Answer: The United Nations was created to promote international cooperation.