Explanation:
1. Indo-Aryans
2. Dravidians
3. Mongoloid and Other Minority Groups
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Explanation:
The reason why world war 1 was so significant is beacuse was one of the great watersheds of the 20th century.
The Industrial Revolution, which began in Great Britain, ushered in a new era of economic prosperity for many people. Through higher employment rates in factories, the income of the average citizen rose. This income was then used to purchase goods, which required more factory workers, which further increased income.
