Why was printing an important advancement in technology

According to your text, systems of government in the united states are shifting from what to what?

Music the height of a wave or the amount of the wave carries is the amplitude. a.air b.nodes c.speed d.energy

Science cannot describe things that a.) are beyond imagination, experience, or human ability b.) cannot be observed, measured, or tested c.) have not been conclusively proven d.) occur without being seen, heard, or felt