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.
The country with the highest literacy rate is Georgia with 100%. <br /> That is an estimate. Other sources cite Canada (99%) and Cuba, Estonia and Poland at 99.8% I believe they're all estimates, though. <br /><br /><br /> Armenia has the highest literacy rate.