Move each feature to the appropriate category based on the process that causes its formation Erosion by waves : Deposition by waves

Beach

Sea arch

Sandbar

Barrier island

Sea stack

Wave cut cliff

Erosion by waves: wave-cut cliff, sea arch, sea stack

Deposition by waves: beach, barrier island, sandbar

Explanation: because i just answer it and got the, right :)

Erosion by waves:

wave-cut cliff, sea arch, sea stack  

Deposition by waves:

beach, barrier island, sandbar

Explanation:

edge 2020

the reason the two sea urchins don't compete with each other for food, resources, etc. is because the urchins have adapted to the environment but they have also adapted to each other. this is most likely because the genes of the sea urchins.