Johnny has two clear solutions, A and B, in test tubes. Blue litmus stays blue and phenolpthalien solution turns pink when added to solution A. Blue litmus turns red
when added to solution B. Which of the following statement is true regarding the two
solutions?

if they have a finite resultant

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 =

there are no atoms