The correct answer is: "marine current"
An ocean current or marine current is a movement of the waters in the oceans and, to a lesser degree, of the more extensive seas. These currents have many causes, mainly the movement of terrestrial rotation (which acts differently and even opposite at the bottom of the ocean and on the surface), as well as the movement of translation of the Earth, the configuration of the coasts and the relative location of the continents. On the other hand, the constant or planetary winds constitute practically a nonexistent cause, since the coincidences between the currents and the planetary winds are due to the fact that they share a common cause, that is, the astronomical movements of the Earth.
The foreign power here refers to France, which invated Mexico in 1861, and it established Mexico's only coronated head: Emperor Maximilian (brother of Austria's Franz Joseph).
The U.S. could not intervene at the time as it was engaged in its own Civil War (1861-1865).
The correct answer is letter B.
Explanation: Federalism is a political system in which political organizations (states, provinces) or groups come together to form a broader organization such as a central state. In the federalist system, its member states maintain autonomy.
A good example of federalism is the United States of America. The states unite to form the central system, but have the autonomy to define issues of various natures, such as the creation of laws, the definition of public policies, the creation and collection of taxes, etc.
This was called the "Iron Curtain" given it's name by Winston Churchill.
<span>Laws passed in one state are honored by other states. </span>