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May 30, 2007 — Three revolutions have come via the airwaves. ... November 2, 1920: KDKA, the first commercial radio station in the United States, goes on ... April 3, 1973: Martin Cooper of Motorola makes the world's first cell phone call. ... Thanks to the amplifying power of the newly invented vacuum tubes, hams started ...
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The amount of lighting could set a brighter or darker tone, the colors are used to portray the mood. Less lighting could mean the play has a more serious topic, where natural lighting could lend a happier theme.
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hope this helped! , mark me brainliest!!!
Answer:
its the 2 one
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god bless u and ur fam have a nice day