The issue of our enquiry

Our enquiry issue is how do tectonic activities affect Cheung Chau’s relief? Generally the relief on Cheung Chau island is quite low, the highest point being formed in the north, about 107 metres above sea-level.(#3)
Tectonic activities in Cheung Chau include vulcanicity (mainly intrusive) and faulting, and they can affect the relief of a place very much. Therefore in the following, we will discuss how do tectonic activities affect Cheung Chau’s relief.