Introducing of Sonali Bag A Bangladeshi scientist has invented one kind of bag called “Sonali Bag”. Its look like transparent polythene bag. It’s made from completely bio-degradable substance. To protect from of hazard effect of polythene goods. Scientist over the globe trying to replace that effect by some new inventions. Finally;  Bangladeshi scientist named Dr. … Continue reading Scientist in Bangladesh has invented one kind of amazing bag