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Pony Express, Telegraph, Telephone, CB Radio
identifybsome groups of people who have been affected by communitions technology and how they have been affectyed.
to influence others in making positive health decisions
This system of pathways used for communication and the protocol and methods used for transmission are collectively called the bus. A protocol is a set of rules and standards that any two entities use for communication.
quantitative research and qualitative research
what has sulfur been used in the past?what has sulfur been used in the past?
what has sulfur been used in the past?what has sulfur been used in the past?
Brake lights
You have: Invasion or Usurping. I'm not 100% on the other methods, but I know these two have been used in the past and present.
Did is used when communicating the past tense of do. Example sentences: She did not know the answer. He did the work and then he got paid. They did the new routine for the audience.
myb cranes
yes it has been used successfully in the past
well they have the government for that
Yes it has been successful in the past
Methods used to find out about the past include historical research using primary sources such as documents and artifacts, archaeology to study physical remains, carbon dating for dating organic materials, and oral history by interviewing people who have knowledge of past events.
Horses are the ones because they were used in the WWI and WWII and also Jeeps were used in 1920
"Have been" is used to indicate actions that started in the past and continue in the present. "Had been" is used to indicate actions that were completed in the past before another action occurred.