5) The pot-in-pot invention changes the girls' lives a great deal. As a matter of fact, they musn't go every day to the market in order to sell the vegetables and are now free to attend school.
II. Expression écrite
The pot-in-pot invention is very ingenious for it releaves the whole population of northern Nigeria of a very important concern. As the main source of income is agriculture, people had to send the girls every day to the market in order to sell the day production. But now that they have a way to store the production and avoid vegetable perishment, their quality of life improves a lot. Gross income rises for they are able to sell on demand and keep the production without electricity. Girls have also free time to go to school and education is very important.