Abstract Humic substances dissolved in "black water. white water. and clear water" rivers of the Amazon River basin were compared were humic substances found in podzolic (spodic) and latosolic (oxic) soils of the Amaon region. Humic-type organic solutes in black water originated from organic matter decomposition and ground water drainage from podzolic soils; clear water drains from la... https://safeersappliancers.shop/product-category/bertazzoni-p755cprox-75cm-professional-series-5-burner-gas-hob-lpg-convertible/