Answer:
A. The method by which the US senators are elected was changed.
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Answer:
an official ban on trade or other commercial activity with a particular country. 
Explanation:
 
        
             
        
        
        
First one is 24 I believe!!!!
        
             
        
        
        
Wages, health, treatment of workers and farmers.
This eventually lead to the Russian Revolution since workers were unsatisfied with how they were treated and how they all lacked the amount of money to purchase basic necessities such as bread.
Hope this helps!
        
             
        
        
        
June 21st is the solstice for summer so the season is winter in the southern hemisphere.