The correct answer is Innovators developed a process to produce steel inexpensively.
The Second Industrial Revolution was born with scientific and technological progress that occurred in England, France and the United States, around the second half of the 19th century.
The discovery and use of new energy sources - oil (in the combustion engine), water (in hydroelectric plants), uranium (for nuclear energy), have further revolutionized industrial production. The list of inventions and discoveries is huge, which represented greater comfort for the human being.
D)Blacks should launch legal and scholarly attacks on segregation without hesitation.
As Du bois was a fimr believer in education and self improvement, searching for growth thru economic and academic succes he was also convinced that they had to get rid of sergregation first, cause if the head of your country tolerates segregation that gives a reason to all white man to believe and treat black men as inferior to them.
Answer:
∆ Instituted in the hope of avoiding war, appeasement was the name given to Britain's policy in the 1930s of allowing Hitler to expand German territory unchecked. Most closely associated with British Prime Minister Neville Chamberlain, it is now widely discredited as a policy of weakness.