Explanation:
The answer to this is neanderthals
Radio, Television, Telephone, and jazz music are some of the things that profoundly transformed entertainment, education, commerce, and research in the 1920s
Answer:
2 years 11 months and 8 days
Explanation:
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We can say that these theories are human constructions.
These theories were constructed, or created by humans, which makes them human constructions. They didn't exist before humans made them - they weren't previously part of nature around us. Rather we created them to suit our own needs and to make us understand life in general.