Answer:
They have a shared economy.
They allow easy migration 
 
        
             
        
        
        
Explanation:
<h3>HOPE IT WILL HELP YOU...</h3>
 
        
                    
             
        
        
        
<span>Environmental protection strategies are hindered in South Asia and Southeast Asia by foreign interference. The correct option among all the options that are given in the question is the third option or the penultimate option. I hope that this answer has come to your help.</span>
        
             
        
        
        
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During a full or new moon, when the Earth, moon and sun align, spring tides form, creating higher and lower than normal tides. During the first- and third-quarter moon phases, when the moon and sun are at right angles to the Earth, neap tides occur, creating low and high tides with minimal difference in heights.
        
             
        
        
        
Explanation:
ohhh yeah thanks for the point dude ✌✌✌✌✌✌