GIVING EASY BRAINLIEST PLEASE HELP!! -if you answer correctly ill give you brainliest which will give you 26pts-

Which features on mars point to the possibility of liquid water on the planet? impact craters with sharp rims volcanic cones with craters gullies and stream-like channels mountain ranges with faults

If a stone with an original velocity of 0 is falling from a ledgeand takes 8 seconds to hoybthe ground whays the final velocity of the stone

In an experiment, how can i change human errors? be specific.