Answer:
The Gold Rush was the largest mass migration in U.S. history. In March 1848, there were roughly 157,000 people in the California territory; 150,000 Native Americans, 6,500 of Spanish or Mexican descent known as Californios and fewer than 800 non-native Americans
The country's inability to supply enough food or jobs for its rapidly growing population.
Answer:
There are 50 states in the United States of America