Racism was the major blow which the American faced. Progressive era was the age in which there was an enormous growth in the economy and the cities were crowded, urbanization resulted, gulf between the rich and poor was huge and racism was also prevalent.
Segregation of African Americans were not given the right if enfranchisement. Many reformers, educators, journalists rose to the occasion during progressive era to fight for abolition of racism and segregation.
Washington and W.E.B. Du bois consistently fought for the welfare of African Americans. Jim Crow laws which were emphasizing separate but equal doctrine were abandoned and equality was sought for.
Answer: Hot air is less dense than cool air; the heated air causes the balloon to rise simply because it is lighter than an equal volume of cold air. Buoyancy is an upward force that the air exerts, and it helps hot-air balloons and blimps stay in the air. A hot air balloon uses a burner to heat up the air inside the balloon.
<span>Adam Smith Industrial Revolution. ... With this book, Smith helped to lay the ideological (and therefore policy) foundations for the development of capitalism. These included the idea that government interference (tariffs, subsidies, regulations, and so on) was counterproductive to economic growth.</span>
