With the development of society, chemical pesticides and artificial fertilisers have been in     1     use in farming for many years. They can help fight crop     2     and increase production. However, they can cause many problems     3    . For instance, pesticides can kill     4     bacteria and insects and crops grown with chemical fertilisers usually grow     5     to be full of nutrition. As a result, many people worry they may make them ill and even cause cancer.

To tackle this problem, farmers use natural waste as     6     and they often change the kind of crop grown in each field every year and they also plant diverse crops that use different     7     of soil to help keep it rich. But organic farming is nowhere near able to     8     the high demand for food. Therefore, there is still a long way to find a     9     solution that puts sufficient food on the dinner table while keeping people and the environment as     10     as possible.