Alarge room contains a volume of air of va/4 m at a temperature of 7a=59 f. it also contains a bathtub holding a volume of water of v,= 0.71 m3 at a temperature of t=112 f

i will answer your question if you answer mine

it is given that trillions of microbes make up to 1% to 3% of the body mass.

let's take average of this percentage: 2%

consider the average mass of the human body as 70 kg.

then, trillions of microbes would have mass  

therefore, 100 trillion micro-organisms would weigh:

this is an approximate value and could change depending on the mass of the human body and percentage of the microbes present in it.

average mass per microorganism =