'you didn't come back with 200 pounds of moon rocks, that's why the orbit isn't decaying properly'
'are we going to die?'
'no but only if you move EVERY SINGLE BIT OF MASS to an absolutely specific portion of the craft you can make it with the last bit of KEROSENE'

just kidding, they only used kerosene lifting up from the ground, i think it was like N2 or something once up in orbit xD

Yes.