Final answer:
The San Francisco Bay changed during the California Gold Rush in terms of population growth, the establishment of entertainment venues, and its impact on the Native American population.
Step-by-step explanation:
The San Francisco Bay changed during the California Gold Rush in several ways. First, the population of San Francisco grew rapidly from a few hundred residents in 1846 to over thirty-four thousand by 1850. This influx of people led to the establishment of stores, saloons, libraries, stage lines, and fraternal lodges.
Second, the Gold Rush boomtowns, especially San Francisco, became centers of entertainment with the arrival of musicians, singers, and acting companies to entertain the gold seekers.
Finally, the Gold Rush had a significant impact on the Native American population in California, leading to a massive loss of life that some scholars view as a genocide.