Chemistry What is the element that is in the highest percentage in the composition of the earth ? Iron Silicon Oxygen Magnesium Iron Silicon Oxygen Magnesium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Gypsum is used for improvement of: Acidic soils Saline soils Podsols Alkaline soils Acidic soils Saline soils Podsols Alkaline soils ANSWER DOWNLOAD EXAMIANS APP
Chemistry The BOD values of water indicate the Amount of oxygen used for biochemical oxidation Amount of oxygen used for biochemical reduction Amount of ozone used for biochemical oxidation Amount of organic debris Amount of oxygen used for biochemical oxidation Amount of oxygen used for biochemical reduction Amount of ozone used for biochemical oxidation Amount of organic debris ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which type of radiations are absorbed by the upper layer of the atmosphere? Visible Infrared Ultraviolet Radio-waves Visible Infrared Ultraviolet Radio-waves ANSWER DOWNLOAD EXAMIANS APP
Chemistry The antiparticle of an electron is Beta particles Proton Positron Alpha particles Beta particles Proton Positron Alpha particles ANSWER DOWNLOAD EXAMIANS APP
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