Why is southeast asia's longest rivers are found on the mainland and not on a island

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

The meseta in spain is a a. navigable river b. castle c. coastal plain d.plateau

Which phrase describes the time it takes for a planet to make a complete rotation