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.
Guinea has a literacy rate of 41%. The Guinea government defines literacy as anyone who can read or write who is at least 15 years old. Guinea was the first to use the Literacy, Conflict Resolution, and Peacebuilding project.