Please please help me

For all machines-not just hammers- the user applies force force to the machine to the machine over a certain distance. question 1 options: input output duo none of the above

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

50 ! if you could have one clothing item of your choice, but it was in either of these colors, which would you choose out of each category? blue or pink red or yellow red or green green or purple blue or green