Various agricultural wastes such as peels of pea (Pisum sativum) pod. tea (Camellia sinensis). and ginger (Zingiber officinale) and banana (Musa lacatan) waste were used to adsorb Cr(VI) from the aqueous solutions. A comparative adsorption efficiency study for all these adsorbents was done in laboratory for various pH. https://www.moodyasamother.com/product-category/acoustic-guitar/