Explanation:
Jewellery may be made from a wide range of materials. Gemstones and similar materials such as amber and coral, precious metals, beads, and shells have been widely used, and enamel has often been important.
Answer:
West Africa’s Great Kingdoms
For hundreds of years, trade crisscrossed West Africa. For most of that time, West Africans did
not profit much from the Saharan trade because the routes were run by berbers, a group of
people from northern Africa. Eventually, that situation changed. A succession of three great
kingdoms came to power as their people, gained control of valuable trade routes in West Africa.
Ghanawas the first of these empires, followed by the kingdoms of Maliand Songhai.
Explanation:
Subduction zone which is an Area where an oceanic plate goes down into the mantle
Distance = √(y2-y1)² + (x2-x1)²
d = √(13-5)² + (10-4)²
d = √8² + 6²
d = √64+36
d = √100
d = 10
In short, Your Answer would be 10 units
Hope this helps!