Answer:
Aryans from central Asia invaded South Asia and introduced the caste system as a means of controlling the local populations.
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.
escalated its troop commitment to the conflict.
