किस पदार्थ के कारण वाष्पोत्सर्जन की क्रिया कम हो जाती है ? - Which substance reduces the rate of transpiration? - Kis Padarth Ke Karan Vashpotsarjan Ki Kriya Kam Ho Jati Hai ? General Science in hindi, Biology pectin question answers in hindi pdf celulose questions in hindi, Know About shleshm General Science online test General Science notes in hindi quiz book cutin
Quitin
Hauyqhh