Answer:
because they wanted to make a better living. Others received letters from friends or family members who had moved west. These letters often told about a good life on the frontier. The biggest factor that pulled pioneers west was the opportunity to buy land.
well potency means the power of something to influence or make an impression. so i think its to influence others with marijuana
Explanation:
It is a fragment because a run on, is something that keeps on going and wont stop and won't put like a period to stop it, which is such as a long sentence.