The most important reason was economical: slavery was profitable for slave owners in the South, and they were against its abolishing. The southern plantations were very work -intensive, so a lot of work was needed and slave labour was a very cheap source of labour that the owners didn't want to give up upon. 
the correct answer is <span>B. The Southern plantation economy depended on slavery. </span> 
        
                    
             
        
        
        
Answer:
<h2>Telegraph</h2>
Explanation:
Telegraph is the answer I would suggest, as that was the first invention that greatly accelerated the speed of communication.  Following that came the telephone, and then after that, cell phones and  the Internet.  All of these communication tools have accelerated the rate and amount of global communication.  But the first step in that direction was the telegraph.
The telegraph was developed in the first part of the 19th century by Samuel Morse and other inventors.   Morse also developed a code (which has been named after him) for communicating messages via short and long   electronic signals over telegraph wires.   Morse sent his first telegraph message in 1844.  By 1866 telegraph lines had been laid across the Atlantic Ocean for communication between the USA and Europe.
As summarized by the <em>History Channel, "</em>The telegraph revolutionized long-distance communication. ... Although the telegraph had fallen out of widespread use by the start of the 21st century, replaced by the telephone, fax machine and Internet, it laid the groundwork for the communications revolution that led to those later innovations."
 
        
             
        
        
        
Answer:
The British adopted a clever strategy in India when it came to administering their new territories. The British tended to rule through these elites. They used them to collect taxes and enforce law and order, and in return, they were allowed a measure of autonomy in their local areas.
Explanation:
 
        
                    
             
        
        
        
Answer:
The First Continental Congress, which was comprised of delegates from the colonies, met in 1774 in reaction to the Coercive Acts, a series of measures imposed by the British government on the colonies in response to their resistance to new taxes.
 
        
             
        
        
        
The same way the Mongols conquering China did, the Macedonians assimilated much of their culture into that of Athenian , Philips son Alexander helped further Greek influence through his conquests, creating cities like Alexandria and turning much of the eastern Mediterranean into a bastion of the "western"  world at the time. Not to mention Alexander was educated by Greek Philosipher Aristotle.