The three activities that contain hidden water usage are:
- Growing cattle feed - This involves significant water usage for irrigation of crops that are grown to feed livestock.
- Growing cotton to make fabric - Cotton farming requires a considerable amount of water, especially in regions where irrigation is necessary.
- Processing and dyeing fabric - The textile production process, including dyeing, typically involves substantial water consumption.
The activities "washing dishes" and "drinking" have more direct and obvious water usage, but do not represent significant hidden water usage compared to the other three options.