About one-third of the people who came west turned around and went back home. Why? What challenges did they face?

They went home because they faced many hardships such as scare amounts of food, water and supplies. Also, many people were tired and couldn't go on the journey any more.

i also think he is correct. i believe they came to washington to protest their rights.

worldwide, 780 million people do not have access to an improved water source. an estimated 2.5 billion people lack access to improved sanitation (more than 35% of the world's population)