It is called social stratification. The idea of social stratification is frequently utilized and deciphered diversely inside particular hypotheses. In human science, for instance, advocates of activity hypothesis have recommended that social stratification is ordinarily found in created social orders, wherein a predominance chain of command might be fundamental with a specific end goal to keep up social request and give a steady social structure. Supposed clash hypotheses, for example, Marxism, point to the detachment of assets and absence of social versatility found in stratified social orders.
        
             
        
        
        
The answer is D due to the fact that both good and bad tings can happen
 
        
             
        
        
        
Answer:
it can help u if u have problems
Explanation:
 
        
             
        
        
        
The experimental factor that is manipulated by an investigator is called the independent variable, while the factor that may be manipulated by the influenced experimental treatment is called dependent factor. Experimental factors are general type or category of treatments. Different treatments constitute different levels of a factor.
        
             
        
        
        
Answer:  Hard answer but heres the explanation
Explanation:
They were similarly caused by nationalism, imperialism, alliances, and militarism. Both wars saw countries trying to upset the power balance in Europe for their own gain.