In which situation is the principle of crosscutting relationships useful in determining relative age

What process is believed to be responsible for the formation of the grand canyon? a) diverging tectonic plates b) converging tectonic plates c) erosion over a long period of time d) caving in of the ground due to erosion

If you were charged with and convicted for a federal crime such as transporting drugs across state lines, but knew you were innocent, what would be steps available to you to clear your name? select all that apply.

Facts/data/information/reason to prove the us is democratic