lnventors Thomas Edison and George Westinghouse made the use of electricity safer and less expensive. What was the most important effect of their innovations?
A. Because oil lamps were no longer used, damages due to uncontrollable ?res were much lower.
B. The use of electricity became widespread in businesses and homes, changing American life completely.
C. Steam engines became obsolete in a matter of months.
D. Pubic utilities could not keep up with the demand for the new inexpensive energy source.
Ans: B. The use of electricity became widespread in businesses and homes, changing American life completely.
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During the nineteenth century, __________________.
A. overall family size increased in all regions of the country B. government at both the state and national level established social programs designed to alleviate poverty C. the number of single women in the United States increased significantly D. the gap between rich and poor in the United States narrowed
Which country gained the most from the Treaty of Brest-Litovsk?
A) Russia B) Germany C) France D) Poland
In a study done by Plant et al. (2000), participants were shown pictures of men and women with ambiguous emotional expressions (a blend between sadness and anger) and told to rate which emotion was being expressed. The participants rated men’s blends as significantly angrier than women’s and women’s blends as significantly sadder than men’s. What can you infer about gender stereotypes and emotional expression based on this finding? What is an implication of this finding?
What will be an ideal response?
"The theory that an enemy will choose not to use nuclear weapons if it believes that doing so will result in its own destruction" is the definition of
A. nuclear warfare. B. nuclear development. C. nuclear deterrence. D. nuclear threat.