Answer:
A. Barriers keep companies from entering the market freely
Explanation:
Incomplete questions. Here is part of the complete questions:
- What is NOT a major river valley in Asia (Tigris-Euphrates, Nile, Indus, Huang He)?
- What is the caste system?
- What important African trading center became a famous center for learning and culture?
Answer:
<u>1. the Nile</u>
<u>2. strict social structure of India</u>
<u>3. Timbuktu</u>
Explanation:
1. We can rightly make this conclusion because even though the Nile is a major river, it is actually located in the continent of Africa, (specifically northeastern Africa).
2. Indeed, the caste system was introduced in. This system requires a strict social structure, in which individuals in the society are ranked by their status etc.
3. The African country of Timbuktu had a major role in African trade, it became a center for African trading. It also contributed to learning and culture.
