Answer:
A creeping bombardment, first used at the Battle of the Somme, involved artillery fire going forward in phases only ahead of the advancing infantry. ... To work, both the heavy artillery and the infantry required correct timing of the tactic. Failure to do this would result in their own troops being killed by artillery.
Answer: interstate commerce
<span> They prevented poor quality goods from being shipped across state lines.</span>
Answer: The Industrial Revolution bought rapid urbanization or the movement of people to cities. Changes in farming, soaring population growth, and an ever- increasing demand for workers led masses of people to migrate from farms to cities. Almost overnight, small towns around coal or iron mines mushroomed into cities.
Explanation:
“A state in which supreme power is held by the people and their elected representatives”