The borders of Latin America as a region have changed only in the northern part, while the inner borders of Latin America have experienced lot of changes.
Explanation:
Latin America is a region where the Spanish and Portuguese language and culture predominate in the Americas, which has been achieved through the Spanish and Portuguese explorations and conquests. This comprises the territories from Mexico in the north, throughout Central America and part of the Caribbean, and almost all of South America. The Spanish and the Portuguese were the first Europeans to colonize the Americas, so naturally they managed to have a lasting impact.
The borders of Latin America as a region have only changed in its northern part, as in the past parts of the southern US, the Midwest, and the West of US have been part of this region. That has changed with the expansion of the US, so the northern border has been set at the US - Mexico border.
The internal borders though, have changed much more. Central America has been divided into numerous small nations. In South America. some, like Brazil and Argentina have remained mostly the same, but on the other internal divisions have been formed several different, smaller nations.
ASEAN is The Association of Southeast Asian Nations is a regional intergovernmental organization comprising ten countries in Southeast Asia.
NATO is The North Atlantic Treaty Organization, also called the North Atlantic Alliance, is an intergovernmental military alliance between 30 European and North American countries.
The reason why the continental crust differs from the oceanic crust is much different in its compositions. The continental crust is thin and less dense , is made of sedimentary and metamorphic rocks than the oceanic crust and is made of lighter elements. The tectonic plates move the composition to the rocks.
