Charlie hypothesizes that if he adds earthworms to a compost pile, it will decompose lwice as fast as a compost pile without
Garthworms Which of the following steps could compromise his experiment?
1 Start iwo compost piles at the same time with the same materials
2. Add earthworms to one compost pile
3. Add decomposing bactena to the other compost pile
4 Rate the level of decomposition in each compost pile every week
5 Report his results
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.
