The three activities that contain hidden water usage are:
- Growing cotton to make fabric - This process requires significant water for irrigation and growth.
- Processing and dying fabric - The manufacturing process often involves substantial water use for dyeing and finishing textiles.
- Growing cattle feed - Producing feed for cattle includes water usage for irrigation and growing crops.
"Washing dishes" and "drinking" do involve water, but they are not typically considered hidden water usage in the same way that agricultural and manufacturing processes are.