The correct answer is : glacier.
In fact, glaciers covered Europe over the last ice age, and when they melted, the material they brought was left over and there are areas where this material is still visible and can be distinguished from other kind of material.
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Answer:
Traders on the eastern coast of Africa, many of them blacks, profited from a rise in trade with Asia, and from India the Africans imported silks, cottons and glassware. From the 1100s, Arabs began arriving in greater number in this coastal area. In the 1200s Mombasa became staunchly Muslim, and a Muslim dynasty was established at Kilwa.
Explanation:
1. Community needs
2. Finaces and accountability
3. Stereotyping
4. Accessibility
