What did the US do about the iran hostage crisis

When did the us congress declare war on the confederate states?

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

Which describes a significant different between the north and the south in the year leading up to the civil war