Question

Ne of the factors that promoted america's search for new markets between 1865 and 1900 was

Answer 1

One of the factors that promoted America's search for new markets between 1865 and 1900 was industrial and agricultural overproduction.
At the time, America was producing a lot - however, there weren't enough people in the country to buy that much goods. This is why it had to spread to other countries and their markets as well - in order to reach a larger customer base.