1 episodio
Educational Vedio sunita yadav
-
- Para toda la familia
Corona pendemic effect on teaching and learning
-
Sound
At a music concert we hear the sound produced by various musical instrument like Sitar, Veena ,violin guitar ,piano .In a garden we hear sound of creeping of the birds rustling of the leaves of the tree in Breeze .so each sound is special to an object which produce it