A diverging mirror has a focal length of -20 cm. An object is placed (i) 10 cm, and (ii) 30 cm from the mirror. (-6.7 cm, -12 cm)

it breaks and dirupture other materials and other sencews from the bottom

cant without the picture! ?

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 =