Video narration
Amra je batas nei, tar 100 bhage ashole koto bhag oxygen? Onekei bhabte paren, shobcheye boro ongshotai bujhi oxygen. Kintu chomok ache - batasher shobcheye boro ongsho oxygen noy. Ebar amader protidiner shwasher bataske 100 bhage bhag kore bhabun. Ei pai charte pray 78 bhag nitrogen - batasher shobcheye boro ongsho. Oxygen ache pray 21 bhag. Baki ongsho khuboi chhoto: pray 0.93 bhag argon, 0.04 bhag carbon dioxide, ar oti samanno onnanno gas. Shotangshogulo anumanik, tai khudro ongshoguloke charte alada kore bojhano kothin. Ar ekti guruttopurno kotha: ekhane dhora hoyeche shushko batas. Batase joliyo bashpo thake, kintu tar poriman jayga o shomoybhede bodlay - tai setike sthir shotangsho hisebe ei sadharon pai charte dhora hoyni. Tahole uttorta ki? 100 bhag shushko batase oxygen pray 21 bhag; amra bachte setai byabohar kori, kintu ei batasher shongkhagorishtho ongsho - pray 78 bhag - nitrogen.