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Ma u dooratay cadayga saxda ah ee ilmahaaga?
Ilaalinta nadaafadda afka ee wanaagsan waa qayb muhiim ah oo ka mid ah ilaalinta caafimaadka ilmahaaga. Mid ka mid ah qaybaha ugu muhiimsan ee nadaafadda afka ayaa ah doorashada cadayga saxda ah ee carruurta. Maqaalkan, waxaan ka wada hadli doonaa sida loo doorto cadayga saxda ah ee ilmahaaga si faahfaahsan. Brist...Sii akhri