div class=ts-pagebutton class=gotoPage data-page=1Page 1button div class=ts-imagea href=https:reader039vdocumentinreader039viewer20220405005e1f9d84eaa1fa0bd557ae88html5page1jpg target=_blank img data-url=portion-pa-pdfchem-matter-in-our-surrounding-chem-is-matter-around-us-pure-biohtmlpage=1 data-page=1 class=ts-thumb lazyload alt=Page 1: vishwakalyanschoolinvishwakalyanschoolinpdfIX Portion PA-pdfchem -matter in our surrounding chem-is matter around us pure bio -the fundamental unit of life bio - tissues phy loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader039vdocumentinreader039viewer20220405005e1f9d84eaa1fa0bd557ae88html5thumbnails1jpg width=140 height=200 adivdiv