QUESTION, WHICH ASKED IN MANY COMPETITIVE EXAM
SI unit of force is Newton · SI unit of pressure is Pascal · Discovery of insulin is done by bantic · Telescope is invented by Galileo · Positron is discover by Anderson · The formula of laughing gas is N 2 O · Gama ray have no charge · Alpha ray have positive charge · Beta ray have negative charge · Solid CO 2 is called dry ice · The density of ice is less then water. So ice is float on water · Chromium and arsenic cause cancer · At first time word acid rain is used by robot Augustus · Jupiter have 64 satellite · SI unit of length is meter · SI unit of mass is kg · SI unit of time is second · SI unit of temperature is Kelvin · SI unit of current is ampere · SI unit of intensity of light is candela · SI unit of quantities of sub