Native american population of central mexico .It decreased by approximately 6 million peopl
It increased to a high of 26 million people.
It increased by approximately 2 million people per year
It decreased to 8 million people.

Which of the following is an example of a concurrent power? a. when a group of states work together to regulate interstate commerceb. when a federal law enforcement agency state policec. when a state creates a treaty with a foreign governmentd. when a local government collects taxes on imports