Answer:
The Erie Canal
Explanation:
When it opened it dramatically decreased the cost of shipping while reducing the time to travel to the West.
Answer:
a. Faraday cage
Explanation:
Faraday cage -
It refer to as a shield which helps to block any electromagnetic fields , is referred to as faraday cage .
It is also known as Faraday shield .
In a Faraday cage , a mesh or covering conductive material is added to block any electromagnetic field .
Hence , from the given information of the question ,
The correct answer is a. Faraday cage .
I believe the answer is -A!
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