The velocity of the gas is inversely proportional to the square root of the molar mass of the gass. Heavier molecules tend to travel slow compared to light molecules. Among these, He has the lowest molar mass of 4 g/mol hence this element has the greatest velocity among all molecules given.
My answer is A. I'm probably wrong. in bad in this subject
The correct answer would be B nuclear fission because an atom is splitting into two large fragments of comparable mass
It provides evidence that each organism is related and similar in each way, leading to the conclusion of a common ancestor.<span />