Never a keen English student either?
On top of what's been mentioned above, when a river runs round a corner the outside edge of that corner is travelling faster (longer route) so erosion is increased, pushing that bank out even more creating an even bigger corner.
On top of what's been mentioned above, when a river runs round a corner the outside edge of that corner is travelling faster (longer route) so erosion is increased, pushing that bank out even more creating an even bigger corner.
If you don't take GCSE or A-Level Geography you aren't going to get taught about it are you? 