Answer:
It increased the demand for raw materials.
Explanation:
In the 19th century, the Second Industrial Revolution began, which spread across Europe, the United States, and Japan. The Second Industrial Revolution is marked by several characteristics because it is an important historical moment for the development of the industry, technological advances and increased productivity. In the case of the United States, we witness an increased development, especially the search for raw materials to supply the industrial demand.
The answer you are looking for is
Democratic Republic of Congo: which gained its independence in 1960
Ghana: which gained its independence 1957
Nigeria: which gained its independence 1960
Hope this helped :D
Clarence Thomas (born June 23, 1948) is an associate justice of the Supreme Court of the United States. He was nominated by President George H. W. Bush and confirmed by the United States Senate to succeed Thurgood Marshall, and is the second African American to serve on the Court.