Answer:
Explanation:
California's Mines After the Gold Rush As gold became more and more difficult to reach, the growing industrialization of mining drove more and more miners from independence into wage labor. The new technique of hydraulic mining, developed in 1853, brought enormous profits but destroyed much of the region's landscape.
The primary effect of cultural exchange between Europe and the Islamic world was that Muslim goods and knowledge led to some advancements in European society. One advancement example is the number system.
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