Which of these is a biotic factor in a beach ecosystem

I dont see any options. Biotic factors are living factors, abiotic are non-living.

Here are some examples of biotic factors in a beach ecosystem.

Fish, crabs, birds, turtles.

-Steel jelly

what's the rest of the question

that would be called plucking : )

explanation:

''plucking, also referred to as quarrying, is a glacial phenomenon that is responsible for the erosion and transportation of individual pieces of bedrock, especially large "joint blocks". as a glacier moves down a valley, friction causes the basal ice of the glacier to melt and infiltrate joints (cracks) in the bedrock."