Chemistry What is the element that is in the highest percentage in the composition of the earth ? Magnesium Silicon Iron Oxygen Magnesium Silicon Iron Oxygen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Quartz is made of Calcium Silicate Sodium Sulphate Sodium Silicate Calcium Sulphate Calcium Silicate Sodium Sulphate Sodium Silicate Calcium Sulphate ANSWER DOWNLOAD EXAMIANS APP
Chemistry The process of removing calcium and magnesium from hard water is known as Flocculation Filtration Water softening Sedimentation Flocculation Filtration Water softening Sedimentation ANSWER DOWNLOAD EXAMIANS APP
Chemistry Highly toxic gas which causes headache, visual difficulty, paralysis and even death is CO2 CO O3 All of these CO2 CO O3 All of these ANSWER DOWNLOAD EXAMIANS APP
Chemistry Silicon is used in All of these Solar energy devices Semiconductors Transistors All of these Solar energy devices Semiconductors Transistors ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is a renewable source of energy ? Natural gas Geothermal powder Coal Uranium Natural gas Geothermal powder Coal Uranium ANSWER DOWNLOAD EXAMIANS APP
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