How did the growth of agriculture lead to the development of specialized skills

Which technological breakthrough of the 1950s revolutionized the way that americans kept up with news and world events? a) radio b) internet c) television d) motion pictures

Restricting immigrants from entering a country may be based on what belief?  

Which two statements regarding graduated driver licensing are true? select all the correct answers. gdl new drivers gain skills under low-risk conditions. gdl new drivers gain skills under high-risk conditions. gdl laws are the same across states. gdl laws vary across states. gdl does not need parental supervision and coaching.