The conservation of tillage practices leads to agricultural sustainability by protecting the farmer's crops from insects and other pests, thus, it reduces the need for the farmers to buy pesticides for the crops, since the tillage method prevents insects.
Omg going to say A I could be wrong
The medication would be the controlled variable, the factor that remains constant.
NADH and FADH2 are used in the next step of the aerobic respiration(electron transport chain) for their electrons, the energy they store in the electrons to be precise