The answer would be immigrant farm workers.
Cesar Chavez was the first activist who has made the first
labor union for farmers. He was one of the founders of United Farm Workers and
fought for the health benefits for many immigrant workers in the late 1960’s. Chavez
was able to help farmers have clean water, protections gears when spraying
pesticides and a better pay.
Because they were afraid to die?
In empty space<span>, </span>all<span> colors </span>travel at the same speed<span> called c. </span>Light<span> of different wavelengths, or colours, </span>travels<span> at different </span>speeds<span> when they </span>travel<span> through any medium other than </span>vacuum<span>. That last statement is not exactly true but the reasons are complicated and you can just look up solitons.</span>