normal erosion meaning in Hindi

Examples

1. Today these roads have disappeared, whether by railway or asphalt roads and freeways or by abandonment at prehispanic times, in addition to normal erosion deterioration, sedimentation and invasion of adjacent vegetation.
2. Building codes usually require beachfront buildings to be set far enough back that it would take 30 years at normal erosion rates for waves to threaten, said the University of Florida's Bob Dean.