They may be changed because they may find evidence of some thing that will change their perspective on things.
The snail will go <span>0.18193752 miles </span>
B. my town is powered by electricity that is generated by the energy from the flow of water through a large dam.
The water from the large dam is example of renewable energy. It can be replenished through rainfall cycle, so it is a renewable form of energy.
I believe it is called an ampere.