Shield volcanoes have gentle slopes like a shield, because they are made of many layers of a kind of volcanic rock that flows easily when melted.
(Shield volcanoes; have; gentle slopes like a shield; because they are made of many layers of a kind of volcanic rock) (they; are made; of many layers of a kind of volcanic rock) (volcanic rock; flows easily; T:when melted)
Shield volcanoes they volcanic rock
have are made flows easily
gentle slopes like a shield because they are made of many layers of a kind of volcanic rock
of many layers of a kind of volcanic rock
T:when melted