Which has more potential energy or are they the same, an apple on top of a tree, or one halfway down?

An apple on top of a tree it possess highest potential energy

explanation:

they can be good for the ecosystem

kelp are large brown algae that live in cool, relatively shallow waters close to the shore. they grow in dense groupings much like a forest on land. these underwater towers of kelp provide food and shelter for thousands of fish, invertebrates, and marine mammal species.

e) all of the above