Answer:
Trade on the coast of East Africa brought about many cultural interactions. Here are three examples:
The Swahili Coast is home to a unique culture and language that is a multicultural blend of African, Arab, and Indian Ocean peoples. This is due to the long history of trade and mingling between various peoples along the East African coast.
The seasonally alternating Indian Ocean monsoon winds allowed for efficient sea voyages up and down the coast, which encouraged intermarriage and cultural exchange between traders who were stranded for months at a time.
The wealth of the Swahili Coast attracted Persian and Arab immigrants, further contributing to the multicultural nature of the region.
These interactions had a positive effect on the region as they contributed to the development of a rich and unique culture along the Swahili Coast.