Chemistry Which type of radiations are absorbed by the upper layer of the atmosphere? Ultraviolet Radio-waves Infrared Visible Ultraviolet Radio-waves Infrared Visible ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is the element required for solar energy conversion ? Ultra pure carbon Silicon Tantalum Beryllium Ultra pure carbon Silicon Tantalum Beryllium ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas used to extinguish fire is Carbon monoxide Carbon dioxide Neon Nitrogen Carbon monoxide Carbon dioxide Neon Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry The element used for making solar cells is Sodium Silicon Calcium Magnesium Sodium Silicon Calcium Magnesium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is caused by the higher concentration of Nitrogen and Phosphorous ? Alkalinity Acidity Eutrophication Hardness Alkalinity Acidity Eutrophication Hardness ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is an iron ore ? Magnetite Lignite Nitrite Bauxite Magnetite Lignite Nitrite Bauxite ANSWER DOWNLOAD EXAMIANS APP
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