10 6. As a reaction to European threats, one of the Presidents said that
further colonization of the Americas by European countries is prohibited.
This statement is known as-*

Washington's farewell address.
Separation of Powers
The Monroe Doctrine.
The Judiciary Act of 1789.

c the monroe doctrine

Explanation:

In a speech to Congress in 1823, President James Monroe warned European powers not to attempt further colonization or otherwise interfere in the Western Hemisphere, stating that the United States would view any such interference as a potentially hostile act.

this question makes no sense dude

mount st. helens in washington erupts, causing a massive avalanche and killing 57 people on this day in 1980. ash from the volcanic eruption fell as far away as minnesota. seismic activity at mount st. helens, which is 96 miles south of seattle, began on march 16.