Answer:
Sectionalism in the United States
Explanation:
Sectionalism in the United States began after the Industrial Revolution. The economy of the country was different based on the geographical conditions. The North was the hub of trading centre and manufacturing goods during the colonial period. Later it rises with small scale industries where artisans showed different skills. The North welcomed the industrial revolution which helped the region to become urban with people moving to towns and cities in search of works. The South on the other hand was geographically good for agriculture. It had fertile soil and a hot climate which helped planters to grow cash crops which benefited them to earn wealth. The South in many ways rejected industries as their economy was based on plantations with the system of slavery. 
 
        
             
        
        
        
The scattering of light by particles in a mixture
        
             
        
        
        
Answer:
Workers are machines.
Explanation:
This metaphor apply to the position of the workers in the Triangle Shirtwaist Factory shows that the workers are the machine that make money for their owners and not more than that. If the owner consider them humans then they will take certain measures in the factory so that their lives will be protected. The owner of the factory considered them machines whose lives have no value.
 
        
             
        
        
        
d. Sending money for foreign investments.
Explanation:
The sub-Saharan African countries, in general, tend to be the least developed countries in the world. They have widespread poverty, corruption, terrible politicians (often dictators), lack industry, lack infrastructure, and do not make great use of their vast resources. This of course can change, as the majority of these countries have huge potential for multiple changes will need to be done for it.
Something that will not help the progress of these countries during the 21st century is sending money for foreign investments. Every single possibility needs to be used so that the countries start to develop and strengthen internally, and that would be extremely hard and slow. Sending money abroad for investments will not be a good method because those money will be more than needed in the country itself, for developing infrastructure and industry.
 
        
             
        
        
        
Matrilineal. In Latin, the root word matri- refers to the mother.