please explain the concept

please explain the concept The amount of water required for a crop plant to produce one kilogram of food is approximately: 2. 10 Kg 3. 100 Kg 4. 1000 Kg

Dear student

Please specify the crop plant.
Water requirement for various crop plant varies according to their environmental condition
The water requirement per kg of sugar is around 1,500-2,000 litres, whereas the water required for producing 1kg of rice is 2,500-3,400 litres, and that for groundnut  is 3,100 litres. Similarly, the water required for producing 1kg of cotton is as high as 10,000 litres.
(1 litre=1kg)

Regards