Chemical weathering involves the change in the composition of rocks, often leading to a 'break down' in its form. This is done through a combination of water and various chemicals to create an acid which directly breaks down the material.
Zimbabwe is often reported to have the highest adult literacy rate on the continent. A recent news article claimed that 90% of the population is literate. The data does not back up the claims. Researched by Kate Wilkinson.
IN THE latest Mo Ibrahim Index on African governance (see article), South Africa is ranked fourth out of 53 African countries for its record on women's rights. In the World Economic Forum's âgender gap indexâ it comes an impressive sixth out of 134 countries in the world.outh Africa has one of the highest incidences of reported rape in the world. In a study by the World Health Organisation, fully 40% of South African women claimed that their first experience of sex was non-consensual. South Africa also has one of the world's highest murder rates.