Multiple choice What is an Archipelago? A long, narrow sea inlet that is bordered by steep cliffs. A hill or a ridge made of sand. A deep valley with very steep sides, often carved by a river. A group or chain of islands clustered together in a sea or ocean. Reveal answer Fill a bubble to check yourself D Correct answer Explanation An archipelago is a chain, cluster, or collection of islands, such as the Indonesian or Japanese archipelagos.