It was Graham Bell who was an early competitor of Thomas Edison's in the electricity industry since he went on to invent the first telephone.
After world war 1 they created an alliance after they were rumored to be threat to other countries
Answer:
Immigration increased child labor,
Explanation: This happened because of the poor immigrant families needing any money they could get, thus sending themselves and their kids off to new jobs.
It <span>resulted in a major shift in the federal government's role in </span>air<span> pollution control.</span>
