<span>D. It was an ecological transformation.</span>
Columbian Exchange was the introduction of Old World plants and animals into the New World and the other way. An example of this was the introduction of tomatoes and potatoes to Europe.
        
             
        
        
        
Answer:
The colonists tried to do in the past was to peacefully demand America's autonomy. However, the British brethren responded with repressions and tyrannies, hampering the peace between the two nations.
Explanation:
American colonists did not want to destroy the partnership and peaceful relations with the British, considering them brother, because of the kinship between the two nations and for this reason, Jefferson says that in the name of this family bond the colonists demanded that they be given autonomy in a peaceful and friendly manner, valuing diplomacy between the two nations. However, the British responded with hostility by imposing sanctions and reprisals that put an end to the Americans' regard for them.
 
        
             
        
        
        
Answer:
I believe is B. both were set up to prevent the spread of communism 
Explanation:
 
        
             
        
        
        
<span>Dmitri Ivanovich Mendeleev</span>
He was a Russian chemist and inventor. He formulated the Periodic Law, created a farsighted version of the periodic table of elements,
and used it to correct the properties of some already discovered
elements and also to predict the properties of eight elements yet to be
discovered.