In the cartoon, now-prosperous immigrants object to further immigration to America. The meaning behind the prosperous immigrants' shadows is that there is an underlying secret to how the immigrants became prosperous or their lives are in danger because they are more prosperous than the locals.
Heat causes chemical reaction so that might be a way in which people use chemical properties to separate one substance from another substance .
<span> Business owners hoped to increase profits by flooding international markets with goods produced in the United States.</span>
Low wages poor conditions while working and the poverty that was spreading around it
