Answer:Algae play significant roles as producers in aquatic ecosystems. Microscopic forms live suspended in the water column. They are the main component of phytoplankton. As such, they contribute to the food base of most marine ecosystems.
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Answer:
A trade association is the kind of international organization that would most benefit this nation. 
Explanation:
Small nations generally do not have large economic output or global supremacy in the production of any specific or specific service. Therefore, its presence and importance in world markets is not so important, and in case it needs to compete with larger nations, it cannot do it by its own means because it does not have the necessary economic volume to affirm its presence in the market. 
Therefore, to help these nations stabilize economically and commercially, the largest and most dominant nations often enter into trade agreements with them to help them progress.
 
        
             
        
        
        
<span>The Roman empire was physically united by good roads and bridges and secure sea lanes.</span>
        
                    
             
        
        
        
Answer:
 Bolívar is a supporter of Enlightenment ideas because he believes in the concept of equal rights. He personally took steps to free the enslaved persons his family owned, and to end slavery in Gran Colombia.
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Answer:
b
Explanation:
 because Greenland is much bigger