How do you determine the thermal energy of an object? a Add 273 to the temperature.
b Calculate the average molecular kinetic energy.
C Subtract 273 from the temperature.
d
Add the kinetic energy of all its individual
molecules.

Hey there

Your answer should be B Calculate the average molecular kinetic energy.

It is not A nor C because 273 has no significance in calculating the thermal energy of an object.

Nor is it D Add the kinetic energy of all its individual

molecules, because that is physically impossible, I mean can you imagine adding up billions of atoms energy that is unreasonible.

Can i have ?

absorption lines are where light has been absorbed by the atom thus you see a dip in the spectrum whereas.

emission spectra have spikes in the spectra due to atoms releasing photons at those wavelengths.

explanation:

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 =