General Science The percentage of oxygen present in air is approximately- 0.21 0.4 0.44 0.23 0.21 0.4 0.44 0.23 ANSWER DOWNLOAD EXAMIANS APP
General Science Actinides are the elements with atomic numbers from 36 from 43 101 to 115 89 to 103 97 to 104 36 from 43 101 to 115 89 to 103 97 to 104 ANSWER DOWNLOAD EXAMIANS APP
General Science Quartz crystals normally used in quartz clocks etc. is chemically A mixture of Germanium Oxide and Silicon dioxide Sodium Silicate Germanium Oxide Silicon Dioxide A mixture of Germanium Oxide and Silicon dioxide Sodium Silicate Germanium Oxide Silicon Dioxide ANSWER DOWNLOAD EXAMIANS APP
General Science Which layer protects earth from harmful rays of the Sun? Troposphere Ozone layer Magnetosphere Ionosphere Troposphere Ozone layer Magnetosphere Ionosphere ANSWER DOWNLOAD EXAMIANS APP
General Science Balloons are filled with Helium Nitrogen Argon Oxygen Helium Nitrogen Argon Oxygen ANSWER DOWNLOAD EXAMIANS APP
General Science Gypsum is added to cement clinker to Increase the tensile strength of cement Facilitate the formation of colloidal gel Decrease the rate of setting of cement Bind the particles of calcium silicate Increase the tensile strength of cement Facilitate the formation of colloidal gel Decrease the rate of setting of cement Bind the particles of calcium silicate ANSWER DOWNLOAD EXAMIANS APP
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