1. Alluvial soil differs in texture because it is a transported soil deposited by rivers.
2. Black soil does not get leached because it is moisture retentive.
3. Khadar is new alluvium deposited by the rivers in their flood plains which is replenished every year. Bhangar is older alluvium found in upland area above the flood plains. Bangar is older alluvium which is not renewed by the floods.