Since abiotic is a non living factor B would be the answer because water is abiotic
He did experiments with combustion and gas's
(46 sec) x √ ((253.80894 g I2/mol) / (44.0128 g N2O/mol)) = 110 sec
Where is the chooses for you question
the law that the product of the pressure and the volume of one gram molecule of an ideal gas is equal to the product of the absolute temperature of the gas and the universal gas constant.