While you didn't really provide the "following" as the comment above me states, in general, the advantage of secondary sources of primary ones is that they perhaps provide a more objective or even just a broader view on a certain topic. While a primary source of the American civil war would be a letter written by a soldier, a secondary source would be a book that describes more letters taken together and discusses possible information regarding them.
1. Advanced Cities
As farmers settled in the fertile river valley, they began to grow surplus or extra food. This extra food increased the population of the settlement that led to the formation of cities
2. Organized Central Government
Definition: a government with rules and way of voting or control
3. Complex Religions
Definition: a set of spiritual beliefs, values, and practices
4. Job Specialization
Definition: specific jobs with requirements or specialties
5. Social Classes
Definition: a broad group in society having common economic,
cultural, or political status/ Distinguished from other groups by such things as wealth, property, and rights
6. Writing
Definition: to trace or form (characters, letters, words, etc.) on the surface of some material, as with a pen, pencil, or other instrument
7. Art and Architecture
Definition: the arts and artwork of a thing, place, time, person, etc.; human creations intended to express beauty and convey messages Architecture: the buildings and style or architecture of a thing, place, time, person, etc.
8. Public Works
Definition: structures, as roads, dams, or post offices, paid for by government funds for public use.
Its actually Akbar
: )
I tried Humayun and it was incorrect : (
And my lesson says its Akbar : )
so..... its Akbar
And dont forget to rate & thank : )