General Science Ek Stree Ki Aawaj Ka purush Ki Aawaj Se Adhik Teekshan Hone Ka Karan Hai ?

एक स्त्री की आवाज का पुरुष की आवाज से अधिक तीक्ष्ण होने का कारण है ? - Why is the voice of a woman more sharp than that of a man? - Ek Stree Ki Aawaj Ka purush Ki Aawaj Se Adhik Teekshan Hone Ka Karan Hai ? General Science in hindi,  Physics Nimntar Avriti question answers in hindi pdf  Uchhtar Aayam questions in hindi, Know About Uchhtar avriti General Science online test General Science notes in hindi quiz book    Kamjor vaak - Tantu