Question

why is the soil in the northern plain fertile​

Answer 1

The rivers in the northern plain flow through the mountains and deposit many minerals and silt. Thus it makes the northern plain so fertile. The northern plains in India are the fertile piece of soil – good and apt for cultivation and agricultural purposes and hence filled with the richness of qualitative soil.

Answer 2

Answer:

The silte which is deposited by river and it tributary makes the fertail.