A local farmer uses chemical fertilizers in his farm. The runoff from the farm pollutes a river which supplies drinking water in the location. This causes serious health problems among people in the location. Which of these is the best method to solve this problem?
- Ask the farmer to stop fertilizing the farm.
- Ask the farmer to use compost to fertilize the farm.
- Ask people to migrate to locations away from the river.
- Ask people in the location to use the river water only for washing purposes