The archipelago is formed by high points on the rim of the caldera of a submarine volcano that forms a seamount. The volcano is one part of a range that was formed as part of the same process that formed the floor of the Atlantic, and the Mid-Atlantic Ridge. The top of the seamount has gone through periods of complete submergence, during which its limestone cap was formed by marine organisms, and during the Ice Ages the entire caldera was above sea level, forming an island of approximately two hundred square miles. COUNT 7
QSN1 What is the limestone cap of the seamount made from? ANS1 marine organisms QSN2 During the ice age, what area of land was above water? ANS2 approximately two hundred square miles QSN3 Has the seamount always been above sealevel? ANS3 The top of the seamount has gone through periods of complete submergence QSN4 What type of volcano forms the archipelago? ANS4 a submarine volcano QSN5 Why is the top of the seamount formed by marine organisms? ANS5 periods of complete submergence, QSN6 What was the result of the whole cladera being above sea level during the Ice Ages? ANS6 an island QSN7 The submarine volcano was formed as part of the same proces as what two things? ANS7 the floor of the Atlantic, and the Mid-Atlantic Ridge