Answer:
B.học sinh có thể tham gia mọi hoạt động phòng,chống tệ nạn xã hội phù hợp vs lứa tuổi
 
        
             
        
        
        
Answer:
M.Checks and Balances
Explanation:
The doctrine of separation of powers states, the U.S. Constitution distributed the power of the federal government among the three branches, and built a system of checks and balances to ensure that no one branch could overpower another
 
        
             
        
        
        
Explanation:
The plastic movement of the mantle material moves like the flow of mountain glaciers, carrying the lithospheric plates along as the convection movement in the mantle moves the asthenosphere.
 
        
             
        
        
        
The answer is Abolitionists