| Weathering |
Candidates should be able to
- Recognise that weathering involves the breakdown of rock in situ, and as such should be
distinguished from erosion.
- Describe what is meant by different types of weathering - physical/mechanical (freezethaw
action, exfoliation), chemical (carbonation, oxidation) and biological.
- Explain the main factors influencing the type and rate of weathering - climate and rock
features (mineral composition, grain size of the rock, presence of lines of weakness). The
influence of climate on the rate of weathering could be illustrated with reference to simple
explanation as to why weathering is more rapid in humid tropical regions of the world than
in temperate regions. |
| The inter-relationship of physical and human geography |
Candidates should be able to
- Demonstrate an understanding that the natural environment presents hazards and offers opportunities for human activities. Reference should be made to the hazards posed by volcanic eruptions, earthquakes, tropical storms, flooding and drought. Use could be made of the study of contemporary examples to illustrate. This information
would provide candidates with valuable case study information. Such examples could form resource material given in examination questions when candidates might be expected to illustrate inter-relationships between the natural environment and human activities from the data presented. Reference to the opportunities and problems posed for people could be incorporated when studies are made of the natural environment, for example the advantages and difficulties offered by river flood plains and deltas. |
