Answer:
The telephone
Explanation:
Alexander Graham Bell patened the telephone on February 14, 1876
Answer:
The cotton gin was a very important technological adcance in the industrial revoulution because it significantly increased the coton production.
The telegraph improved comunications and started the era of information
Explanation:
have a great day
I believe the answer is: Core
A nations is considered as a core of world's economic system if every economic decisions that made by that country would most likely set up the economic trend for the rest of the world. Other example of nations that considered as a 'core' are: England, China, Russia, and Germany
This would be A i am guessing
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Primary aging
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