I believe the answer is: Just over 50%
in Gebusi culture, the sister exchange often used to for the benefit of the tribe's interest. For example, they often use the sister exchange to build a peaceful treaty with neighboring tribes or as a form of exchange for a certain resources (such as foods) <span />
Answer:
For this reason, oases in the Sahara and throughout the world have become important stops along trade routes. Merchants and traders who travel along these routes must stop at oases to replenish food and water supplies. ... Rivers that flow through some deserts provide permanent sources of water for large, elongated oases.
Explanation:
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