The correct answer is - Large numbers of migratory birds;
The number of the migratory birds has always been pretty high and it hadn't resulted in the drying up of the Ogallala Aquifer, not to mention that those birds can not even reach that water because it is underground. Also, the number of the migratory birds have been steadily lowering, so even if they were using that water for drinking, it wouldn't have caused the drying out.
The Ogallala Aquifer has started to dry out because of numerous reasons, with the usage of its water for irrigation being the prime reason. The droughts have become longer, and the temperatures little higher, while the rainfall slightly smaller, so all of that affected the reserves of water in the aquifer negatively.
Federalism: shared powers for the branches of government. It's powers shared between the national and state government. :) (Good luck with history!)
Answer:
A continental divide is a drainage divide on a continent such that the drainage basin on one side of the divide feeds into one ocean or sea and the basin on the other side feeds into a different ocean or sea. The most famous Continental Divide of the Americas is called the Great Divide. It separates the watersheds of the Pacific Ocean from those of the Atlantic Ocean. It runs from Alaska, through western Canada along the crest of the Rocky Mountains to New Mexico. From there, it follows the crest of Mexico’s Sierra Madre Occidental and extends to the tip of South America. However, this isn’t North America’s only continental divide, there is also the Northern Continental Divide, the Eastern Continental Divide, the Saint Lawrence River Divide, the Great Basin, and the Laurentian River Divide.
Children didn't have to do child labor and get an education
