I hope your well I need some help if you can then your the best it’s science

They affected ocean levels, causing waves to affect different areas at the coastline at different times.

Explanation:

answer

the best answer is c

swahili is an extremely rich and complex civilization, a set of ethnic groups articulated by a language and a series of cultural elements that fuse the african traditions, islam and indian culture. this growth was largely a result of the indian ocean trading network that brought in not just man-made riches, but also religious ideas, specifically islam, which had a significant impact on the local culture. furthermore, the development of the swahili language gave a common cultural unity to the people.