bottom 24 waves desertification above the oil
ocean_stratification_zone is water. ocean_stratification_zone is salt_water. desertification is physical_destruction_event. ocean_stratification_zone is not salt_water. ocean_stratification_zone is not layer. ocean_acidification is not acidification. ocean_acidification is acidification. ocean_stratification_zone is not water. coastal_zone is ocean_stratification_zone. desertification is destruction_event.