What is a barrier island?
Aa narrow bank of sand that projects into the water from a bend in the coastline
Ba long ridge of sediment deposited by the longshore current and separated from the mainland
Ca ridge of sand that forms between the mainland and an island connecting the island to the mainland
Da long ridge of sediment that forms when a spit closes off a bay
Aa narrow bank of sand that projects into the water from a bend in the coastline
Ba long ridge of sediment deposited by the longshore current and separated from the mainland
Ca ridge of sand that forms between the mainland and an island connecting the island to the mainland
Da long ridge of sediment that forms when a spit closes off a bay
