General Science The two elements that are frequently used for making transistors are Niobium and Columbium Iridium and Tungsten Silicon and Germanium Boron and Aluminium Niobium and Columbium Iridium and Tungsten Silicon and Germanium Boron and Aluminium ANSWER DOWNLOAD EXAMIANS APP
General Science Bell metal is an alloy of Brass and Nickel Zinc and Copper Tin and Copper Nickel and Copper Brass and Nickel Zinc and Copper Tin and Copper Nickel and Copper ANSWER DOWNLOAD EXAMIANS APP
General Science Fathom is the unit of Frequency Distance Depth Sound Frequency Distance Depth Sound ANSWER DOWNLOAD EXAMIANS APP
General Science The age of most ancient geological formations is estimated by C14 method Uranium - lead method Ra - Si method Potassium - argon method C14 method Uranium - lead method Ra - Si method Potassium - argon method ANSWER DOWNLOAD EXAMIANS APP
General Science Galvanised iron sheets have a coating of Chromium Tin Zinc Lead Chromium Tin Zinc Lead ANSWER DOWNLOAD EXAMIANS APP
General Science Which layer protects earth from harmful rays of the Sun? Troposphere Ionosphere Ozone layer Magnetosphere Troposphere Ionosphere Ozone layer Magnetosphere ANSWER DOWNLOAD EXAMIANS APP
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