Which correctly describes the law of conservation of energy?
energy can be created or destroyed, but cannot change from one form to another.

energy can be created or destroyed, and can change from one form to another.

energy cannot be created or destroyed, but can change from one form to another.

energy cannot be created or destroyed, and cannot change from one form to another.

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 =

answer(20) psi;

inverse v=i*r

nice nice