What content is Northeast of Africa?

Trade routes emerged along which coast when arab and indian traders from around the indian ocean mixed with the bantu people from africa's interior? a. swahili coast b. guinea coast c. drakensberg coast d. namib coast

Hey, i was what is consisted in a sustainable city? like what unique designs they have, etc. for answering ; )

Which of the following statements best describes east asia? a. east asia is known to be the crafle of civilizationb. east asia is one of the world's most populates placesc. east asia is one of the worlds riches placesd. east asia is located near the equator me asap huhu