as the reforestation masses , the sand deposition will decrease
gradual_accumulation is not increase_event. reduction_in_hydrocarbon_viscosity is not decrease. reforestation is reclamation. refinishing is not maintenance. reduction_in_hydrocarbon_viscosity is decrease. refinishing_wood is not refinishing. pollution_abatement is not decrease. pollution_abatement is decrease. reforestation is not reclamation. refinishing is maintenance.