Answer:
it was the largest empire in pre-Columbian America. Ilqmd I think its a political and administrative structure and is considered by most scholars to have been the most developed in the Americas before Columbus' arrival.
It would be Labor Unions.
Answer:
Explanation:
I feel that an important issue that involves the endangerment of the ocean and the sometimes innocent sea creatures that live inside it, is the dumping of chemicals and trash in our oceans. I believe the government should find some other creative way to rid us of the un-needed chemicals and trash, instead of dumping it into our beautiful oceans and killing the healthy environment that our sea creatues such as, turtles, fish, sharks, seahorses, and etc.
When you dump chemicals into the water, it ruins the water, making it harder to clean for household uses, and takes much more time to filter, and possibly boil.
And it also lowers the amount of water available to other countries that need it!