ሳይንስጉዳቱን አስልቶ፤ ግልጽነት ባለው መልክ እና በፍጥነት ለማወቅ ያስችላልTo play this audio please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoሳይንስNejat Ibrahim Ahmed16 ሚያዝያ 2011ረቡዕ፣ ሚያዝያ 16 2011https://p.dw.com/p/3HMZ6ማስታወቂያ