The earth’s crust is constantly changing due to a process called plate tectonic. The other natural changes include changes incurred by rivers etc. We know because […]
Old Spice Paper Products specialises in party products such as paper plates, serviettes, paper cups as well as greeting cards and wrapping paper. The national office for […]
in the determination of iron in vitamins, fe2+ is titrated with permangante, mno4- in acidic solution. the products of the reaction are fe3+ and mn2+ in […]