References

1.

2. Ip Kim Wai, Lam Cji Chung, Sze Ming Hui, Wong Kam Fai, Yeung Kam Chuen. (2009) Senior Secondary 4 Exploring Geography Dynamic Earth. Hong Kong: Oxford University Press (China) Ltd

3. Topography. Retrieval 2010-05-02 from
http:// www.slcss.edu.hk/subjects/geog/cheungchau/topograp.htm

4. Hong Kong Gelogical Survery, Civil Engineering and Development Department. Weathering &Erosion- Introduction to Geomorphological Processes. Retrieval 2010-05-02 from
http://hkss.cedd.gov.hk/hkss/eng/education/GS/eng/hkg/chapter4.htm?tab=0

5. Queen's College by S.4E (group B) 2002-2003.Biological weathering. Retrieval 2010-05-02 from
http://www.qc.edu.hk/it-school/homepage/geog/cheung%20chau/web/phy.htm#honeycomb

6.

7.
http://www.hktraveler.com/greenteach/bio_01.htm

8. Rocks and Minerals (1996)