The plains are the centres of great economic advancement. The alluvial plains have been the cradles of civilisation from the earliest time.
They have the following advantages to man:
1. Railways, roads and waterways can be easily laid.
2. They are the granary of the world.
3. Due to fine climate, fertile soil and facilities for movement, the plains have become thickly populated and most of the big cities and towns are situated in the plains of the world except in areas which suffer from harsh climate and temperature.
