It would be easier to read
The Arno River (C) is an important river located in the Tuscan Region of Italy and was an important geographic feature which helped Florence to become a trade center.
1) Stock market crash.
2) Consumer spending and investment dropped.
Explanation - After a stock market crash of October 1929, Wall Street was sent into a panic and wiped out millions of investors. Over the next several years, consumer spending and investment dropped, causing steep declines in industrial output and employment as failing companies laid off workers.
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- Kana
Answer: A. Navajo Indians in the U.S. Marine Corps developed an unbreakable code using their native language.
Navajo is a language that is not written and is very complex with its incomprehensible syntax, tonal qualities and especially the dialects. That is the main reason that Navajo language was used to secure communications during the war.
Yes, in general it is true that an important characteristic of civilization is economic activity, since without economic activity it is impossible to trade and grow the economy to the extent that people can develop new skills and trades.
