At the end of the last ice age, melting ice caused sea level rise, which flooded river valleys along the atlantic coast of north america, these flooded river valleys are called what?

Match each idea to the correct principle of government. federalism separation of powers checks and balances divides the powers of government into different branches arrowright divides the powers of government between central and state governments arrowright each branch of government has certain powers that prevents the abuse of power on the people arrowright