I think it's the telephone because it allows people to communicate better and customers or workers don't have to walk up to everyone and disturb them. You may elaborate more on this with your own opinion
Answer:
house of refugee
Explanation:
In 1824, the New York Legislature approved construction of a House of Refuge for juvenile delinquents and discovered the first detention system that separated children from adults.
Answer:
Indus River Valley
Explanation:
Modern day Punjab and Sindh provinces were proven to be the Indus's two largest cities : Harappa and Mohenjo-daro
Local area network and Ethernet. Twisted pair cabling includes four pairs of twisted wires, normally connected to a RJ-45 plug at the end. A local area network (LAN) is a group of computers that are connected together in a localized area to communicate with one another and share resources such as printers.
HOPE THIS HELPED!! XDD