Скачать или смотреть SOBANUKIRWA NEZA UBUTAYU BWA SAHARA

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Ubutayu bunini kuisi bwa sahara bumaze imyaka irihagati ya miliyoni 30 na miliyoni 40 bubayeho(ibigereranyo by'abashakashatsi); mbere y'uko bubaho sahara yari ubutaka bwiza bufumbiye,bweera kandi buriho inyanja n'ibiyaga byari mu binini muisi; bitewe n'uko urugendo isi ijya ikora rwo kwizengurukaho (rotation) hariho ubwo iva munzira yayo igahengama ho gato,icyo gihe iyo bibaye,imvura iba ishobora kugwa mu butayu bwa sahara mu gihe kirekire hakaba havuka ibimera; gusa ibi bibaho buri myaka ibihumbi 20; tubashije kubaho iyi myaka, twazabona sahara yongera kuba ubutaka bufumbiye kandi buriho ibimera. turaganira kuri bumwe mu bushakshatsi bwagiye bukorwa kuri ubu butayu n'ibimenyetso bwatanze bigaragaza inzira byanyuzemo kugira ngo sahara ihinduke ubutayu. kandi yarahoze ari ubutaka bufumbiye buriho inyanja n'ibiyaga.

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