Final answer:
Rukmani and Nathan are able to harvest fish from their rice paddies, which provides them with dietary protein and helps in controlling mosquitoes.
Step-by-step explanation:
The food that Rukmani and Nathan are able to harvest from the rice paddies, apart from the meager supply of rice, is fish. The practice of introducing fish into rice paddies, known as intercropping, serves multiple purposes. Paddy rice farmers can reduce costs associated with pesticides and fertilizers and add dietary protein to their meals through this method. Additionally, the fish contribute to controlling mosquito populations by eating the larvae, helping to reduce the incidence of mosquito-borne diseases.
Rukmani and Nathan are able to harvest fish and certain roots from the rice paddies, apart from the meager supply of rice. The roots they harvest taste like nuts and are of different sizes, some bigger and some smaller. These roots are mainly obtained from the water with great effort.