How on Earth? Answers to Puzzles of our Planet

This title sets out to answer commonly asked questions from nature and the environment. Why is there such a neat fit between the coastlines of Africa and South America? Why is Table Mountain flat, while the adjacent Twelve Apostles are so rugged? Where does the pumice stone on the beaches of Arniston come from? What happens to cause a tsunami? How does rock come to be folded? 

For each of some 70 questions there is an explanation, be it geological, mineralogical, astronomic – whatever the field, the evidence is carefully presented and explained so that even those with little knowledge in these fields can understand the processes that have been at work.