Answer:
Cell phones and lighting
Explanation:
Cell phones allow everyone to be connected with one another,
and lighting allows people to work more then eight hours a day. Before electricity people were only able to work while the sun was out. It also allows us to produce goods faster and of higher quality.
<span>B. A shift from politically active religions to nonpolitical </span>
An American with a political ideology that is primarily moderate, yet more liberal on some issues is most likely to be a member of the Independent Party. The correct option among all the options that are given in the question is the first option or option "A". I hope the answer helps you.
<span>The one topical reason for the plague portrayed by ibn khaldun which visited eurasia between the time period of 1331 and 1347 is that the rats, bugs, microbes, military clash in Caffa, as well as financial exchange or economic trade interfaces between Afro-Eurasia.
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Actually the real answer is the second and first world war pouring money into the us economy for output. If that is not an option it would be the invention of the steam engine and the 1800's locomotive industry.