deposition sometimes increase the taking of evaporation in sand
accumulation is not increase. deposition is accretion. gradual_accumulation is increase_event. water_evaporation is destruction_event. water_evaporation is not evaporating. gradual_accumulation is not increase_event. water_evaporation is evaporating. deposition is not accretion. water_evaporation is not destruction_event. accumulation is increase.