Chemistry The metallic constituents of hard water are : Magnesium, tin and iron Iron, tin and calcium Magnesium, calcium and tin Calcium, magnesium and iron Magnesium, tin and iron Iron, tin and calcium Magnesium, calcium and tin Calcium, magnesium and iron ANSWER DOWNLOAD EXAMIANS APP
Chemistry Where does the oxygen that keeps us alive come from? Carbon dioxide Oxides of minerals Carbonates absorbed from soil Water Carbon dioxide Oxides of minerals Carbonates absorbed from soil Water ANSWER DOWNLOAD EXAMIANS APP
Chemistry In ice, the number of hydrogen bonds per water molecule is 4 2 1 8 4 2 1 8 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Isobars are lines joining places having equal Pressure Population Height above sea-level Rainfall Pressure Population Height above sea-level Rainfall ANSWER DOWNLOAD EXAMIANS APP
Chemistry A matured mammalian cell without nucleus is Lymphocyte Spermatozoan Erythrocyte Oocyte Lymphocyte Spermatozoan Erythrocyte Oocyte ANSWER DOWNLOAD EXAMIANS APP
Chemistry The pollutant responsible for ozone holes is ________ CO2 CO CFC SO2 CO2 CO CFC SO2 ANSWER DOWNLOAD EXAMIANS APP
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