I believe it's A. the others one's seem less likely.
Answer:
The Industrial Revolution and that railroads are "transformational" is explained below in detail.
unusual.
Explanation:
The Industrial Revolution modified economies that had been established on cultivation and craftsmanships into economies established on large-scale manufacturing, mechanized production, and the factory arrangement. Modern machines, new energy sources, and innovative techniques of composing work made present industries more productive and energetic.
Answer:
Explanation:
This is because iron is more reactive than copper in the metal reactivity series. The more reactive an element is, the harder it is to extract it from their ore. ... On the other hand, we just need to hear copper oxide in the air in order to extract copper metal.
Answer:
D
Explanation:
It is most important out of public service thing he did.