This one example of each of the following forms of energy found in the photo
please help me​

Often on a topographic map, every fifth contour line is darkened. what is this line called? a. key b.slope c.benchmark d. index contour

Gymnast always perform on padded mats. how does the mats protect the gymnast

A50.0g sample of liquid water at 0.0 c ends up as ice at -20.0 c. how much energy is involved in this change?