There is less use or less need for indigenous languages due to one of the following processes:
• Media, Internet, consumer goods, trade, and higher education encourage indigenous peoples to learn, accept, or adapt to the global economy or globalized culture.
• Foreign investment in infrastructure (e.g., cellular phone networks, railways, highways, and ports) places indigenous peoples in contact with the global economy or globalized culture.
Federalism is the division of power between states and the federal government.
Federal law preempts state law. This is due to the National Supremacy Clause in Article 6 of the U.S. Constitution.
You need to upload pictures of the sources so we can see them :)