I believe that if he added the Earth Worms, he could not mesure the time it takes to actually decompose the compost pile without the Earth Worms since it takes that long.
Try using the elimination method Salt and sugar are soluble so we are left with being at and quartz. Vinegar is a liquid so I will assume it will dissolve. We are left with quartz
The main objective of the Asteroid Redirect Mission was to develop deep space exploration capabilities needed in preparation for a human mission to Mars and other Solar System destinations per NASA's Journey to Mars flexible pathways.
