HURRY PLEASE HELP ME Which of the following is an incorrect statement?

A pencil on a table contains potential energy.
Potential energy does work.
All objects contain potential energy.
Potential energy is stored energy.

I think it is Potential energy is stored energy

Explanation:

potential energy is stored energy, to my knowledge

a skateboard rolling across the street - apex

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 =