Geologically, Plymouth has a mixture of limestone, Devonian slate, granite and Middle Devonian limestone. Plymouth Sound, Shores and Cliffs is a Site of Special Scientific Interest, because of its geology. The bulk of the city is built upon Upper Devonian slates and shales and the headlands at the entrance to Plymouth Sound are formed of Lower Devonian slates, which can withstand the power of the sea. COUNT 5
QSN1 What special designation does Plymouth Sound, Shores and Cliffs possess? ANS1 Site of Special Scientific Interest QSN2 What stones form the headlands near Plymouth Sound? ANS2 Lower Devonian slates QSN3 Along with Devonian slate, Middle Devonian limestone and limestone, what stone provides the geologic base of Plymouth? ANS3 granite QSN4 Along with shales, what is most of the city built on? ANS4 Upper Devonian slates QSN5 For what reason is Plymouth Sound a Site of Special Scientific Interest? ANS5 its geology