B. Why is school regarded as a secondary means of socialization?
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Secondary socialization refers to the social learning that children undergo when they enter other social institutions, like school.

Characteristics of the school, teachers, and the peer group all influence the socialization of children within school settings, that's why school regarded as a secondary means of socialization.

By educating and modelling socialization to the learners they will learn the meaning of generosity and kindness. They will then be able to go out into society and contribute in a productive, meaning and positive way.

the factors that the economies of the muslim empires prosper were:

1- land trade routes-located between three continents  

2- sea trade routes

trade contributed to the spread of muslim empires, and with that islamic culture led to a growing feeling of internationalism resulted in the transfer of technology, science, and other cultural forms.