The number of civilizations participating increased as well as trade networks developed.
Step-by-step explanation:
There are many reasons for the springing up of Indian ocean trade, this includes:
- new kingdoms in South east Asia and middle east
- Byzantines consolidating power while the Europeans dwindled
- Indian trade becoming more fruitful with spices
- The advent of Islamic trade routes
The impact of this was:
- India became an epicenter of trade along with Arabia due to the expansive sea routes.
- The spread of Islam to other coasts was quicker.