Answer:
The invention of phones has drastically impacted the world.
Step-by-step explanation:
Put in the correct information from sources here but something like
most people have them (like in america or something?) %of people in the world with a phone
Letters are slow so information gets places much faster.
can talk to people not in the same room and even see them as if they were right there with us so people don't have to travel as often.
I hope this helps!