A frog sits on a lily pad in the middle of the pond. Suddenly it makes a leap pushing off the lily pad. what is the action and reaction?

The action is the frog pushing off the lily pad with its legs, propelling itself into the air. The reaction, according to Newton's third law of motion, is the lily pad exerting an equal and opposite force back onto the frog. This interaction allows the frog to launch itself upward while the lily pad remains in place.