Answer:

1. A fish uses its fins to push water backwards.
2. Jay is walking on the street.
3. A horse pulls a cart, a person walks on the ground, a hammer pushes a nail, magnets attract paper clip.
4. Pulling an elastic band.
5. Jake is rowing a boat.
6. Kim pushed John on the floor.

Explanation:

"For every action, there is an equal and opposite reaction."

The statement means that in every interaction, there is a pair of forces acting on the two interacting objects. The size of the forces on the first object equals the size of the force on the second object.