D.provide revenue for the government
An important difference between Edison‘s inventions and those dire industrial technologies after the civil war was Edison's early inventions did not favour mass production of goods.
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The emergence of urgency for new industrial technologies resulted in the invention of many crucial machines and devices. These technologically advanced machines proved beneficial in undertaking mass production of commodities.
The early inventions of Thomas Alva Edison were not relevant to the contemporary need of the industry as the inventions were that of the phonograph and the incandescent bulb.
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Geographical and environmental factors shaped the development of Native American societies, including their migration and settlement patterns throughout the United States. Some Native societies created innovations in agriculture, like irrigation, to help sustain permanent settlements.
Explanation:
Answer:
<h2>a, the use of trench warfare</h2>
Trench warfare in World War I meant that the armies dug into trenches to hold their ground. But it proved impossible for them to make any advances against each other. If they would try to mount an attack, venturing into "no man's land" between the trenches, they'd get mowed down by machine gun fire. In addition to bullets and artillery fire, trench warfare also came to involve the use of chemical weapons like mustard gas. Trench warfare in World War I was miserable and gruesome.
Hmm is that your full question