Ch 1 Crop Production and Management 1 (1).pptx SUSTAINABILITY PEAS CLUB at school campus Understanding marginalization social science.pptx Ch 4 Heat is for cbse class 7...very informative pot Ch 12 Friction class 8 cbse very informative pppt L 12 some natural phenomenon class 8 very informative ppt Friction, factors affecting friction,types of friction, 
