Chemistry Mercury is emitted into air by Burning garbage Coal fire Steam engine Burning coal Burning garbage Coal fire Steam engine Burning coal ANSWER DOWNLOAD EXAMIANS APP
Chemistry The metallic constituents of hard water are : Iron, tin and calcium Magnesium, calcium and tin Magnesium, tin and iron Calcium, magnesium and iron Iron, tin and calcium Magnesium, calcium and tin Magnesium, tin and iron Calcium, magnesium and iron ANSWER DOWNLOAD EXAMIANS APP
Chemistry The minimum energy required for an effective collision is Activation energy Threshold energy Internal energy Free energy Activation energy Threshold energy Internal energy Free energy ANSWER DOWNLOAD EXAMIANS APP
Chemistry A thick paste of cement, sand and water is called Concrete Mortar Kiln R.C.C. Concrete Mortar Kiln R.C.C. ANSWER DOWNLOAD EXAMIANS APP
Chemistry White lung cancer' is caused by Paper Silica Textiles Asbestos Paper Silica Textiles Asbestos ANSWER DOWNLOAD EXAMIANS APP
Chemistry Most poisonous pollutant in water is Detergent Arsenic Phosphate Zinc Detergent Arsenic Phosphate Zinc ANSWER DOWNLOAD EXAMIANS APP
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