Chemistry Entropy of Universe is always Decreasing Constant Increasing Zero Decreasing Constant Increasing Zero ANSWER DOWNLOAD EXAMIANS APP
Chemistry Conduction band electrons have more mobility than holes because they Experience collision less frequently Need less energy to move them Are lighter Have negative charge Experience collision less frequently Need less energy to move them Are lighter Have negative charge ANSWER DOWNLOAD EXAMIANS APP
Chemistry Muddy water is treated with alum in purification process, itis termed as : Adsorption Emulsification Coagulation Absorption Adsorption Emulsification Coagulation Absorption ANSWER DOWNLOAD EXAMIANS APP
Chemistry The source of energy that causes the least global warming is Coal Geothermal energy Natural Gas Petroleum Coal Geothermal energy Natural Gas Petroleum ANSWER DOWNLOAD EXAMIANS APP
Chemistry Submarines move under water. They have engines that run on Petrol and oxygen Steam Diesel Batteries Petrol and oxygen Steam Diesel Batteries ANSWER DOWNLOAD EXAMIANS APP
Chemistry In upper layer of atmosphere ozone is formed by The combination of oxygen molecules The action of ultraviolet rays on oxygen Subjecting oxygen to high pressure The action of nitrogen on oxygen in atmosphere The combination of oxygen molecules The action of ultraviolet rays on oxygen Subjecting oxygen to high pressure The action of nitrogen on oxygen in atmosphere ANSWER DOWNLOAD EXAMIANS APP