You decide it is either a natural or artifisial boundry......
Ohio River
waterfalls
it is Sea's
prudhoe is an example of what kind of physical feature
Bays
rivers
Its a divergent boundary
An island is a physical feature that is completely surrounded by water. A harbor, on the other hand, is a sheltered body of water where ships can anchor and dock.
convergent boundary.
An invisible boundary, probably.An invisible boundary, probably.An invisible boundary, probably.An invisible boundary, probably.
Thingvellir National Park in Iceland sits on the Mid-Atlantic Ridge, a divergent boundary where the Eurasian and North American tectonic plates are moving apart from each other. This geological feature creates a rift valley with visible crack formations on the surface.
It's a divergent plate boundary.