Answer:
A. Let the land lie fallow for a season. 
Explanation:
In Agriculture when a farmer has some problems with the quality of his soil due to continued planting all year round without allowing the soil rest, there seems to be loss of some of the nutrients that help crops grow and he is unable to grow crops on his field.
The best option is to allow the land low fallow with grasses and other plants growing and replenishing the soil.
 
        
             
        
        
        
Answer:
Military communications have to be coded to keep them secret from the enemy. However the process of coding and decoding are time consuming processes. Furthermore the codes may be broken by the enemy. Nations have devoted considerable effort trying to create unbreakable codes. In World War II both Germany and Japan thought they had such unbreakable codes, but in fact these codes were broken and their most vital information were readily available to their enemies.
Explanation:
 
        
                    
             
        
        
        
Cuba began building midsole bases 
Cuba became a communist country 
And maybe the last one also but I don’t think so
        
                    
             
        
        
        

How did enslaved Africans build strong community ties with one another in
the Americas?
Answer:
D. They drew elements from different African cultures to create a new
culture they could all participate in.
Hope this Helps!!

 
        
             
        
        
        
Answer:
Explanation:
The growth of agriculture resulted in intensification, which had important consequences for social organization.
Larger groups gave rise to new challenges and required more sophisticated systems of social administration.
Complex societies took the forms of larger agricultural villages, cities, city-states, and states, which shared many features.
Specialized labor gave rise to distinct social classes and enabled creative and innovative developments.
Systems of record-keeping and symbolic expression grew more complex, and many societies had systems of writing.