Answer;
"Red scares" - spies
In the 1920's people reveled distrust of others as Red scares- spies.
Explanation;
Red scare is the promotion of widespread fear by a state or a society about a potential rise of Communism, anarchism, or radical leftism. It first occurred immediately after the world war I, <span>1919-</span>1920<span>, when many in the United States feared recent immigrants and dissidents, particularly those who embraced communist, socialist, or anarchist ideology. </span>
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The gran chaco is a plateau. hope this helps :)
Suburbs were becoming more affordable with the economic rise.
The positive effect of the Industrial Revolution was that "advances were made in medicine and technology".