Answer:
O F. exploration and colonization of the colonies in America
Explanation:
The main factor that involved for the discovery of gold, silver and oil in America is the exploration and colonization. First, different explorer explore the America and its different resources like gold and silver and then the people of those countries start colonizing in these areas in order to get these natural valuable resources in order to boost their economy.
In the 1960s and 1970s during which several environmental laws were passed, regulating air and water pollution came to the forming of the Environmental Protection Agency<span> (EPA). </span>
A tax on all printed materials
