and debris picked up from the ground. Diameters range from about 3m to 30m; their average height is about 200m but
esuka emhlabeni egquthayo ibangele ubutyobo. Izinqumla-sangqa sisukele kwiimitha ezi-3 ukuya kwesingama-30, umlinganiselo wazo umalunga neemitha ezingama-200 kodwa