Answer:
the answer is electric power
<span>They built a system of bridges to cross over steeply sloped land.
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The correct answers are: A. many wars within the empire and with foreign powers. And B. duty to pay taxes and serve in the army for citizens.
The Agricultural Revolution of the 18th century paved the way for the Industrial Revolution in Britain. New farming techniques and improved livestock breeding led to amplified food production. This allowed a spike in population and increased health. The new farming techniques also led to an enclosure movement.
Holodomor
kill- by-famine
The policies of Stalin known as the five years plan that aimed at industrializing soviet union are to be blamed for million death, that were covered up from the outside world.