Explain how the separation of powers limits the power of the federal government

Federalism limits government by creating two sovereign powers the national government and state governments thereby restraining the influence of both. Separation of powers imposes internal limits by dividing government against itself, giving different branches separate functions and forcing them to share power.

It should be at the center of any map going vertically: the prime meridian, as it passes through greenwich,  england, is considered 0 degrees longitude