The answer would be Fuel for transportation.
Step-by-step explanation:
1) We drink water daily, everyone in the wold consumes water. which makes it a major use. Plus you need water to stay healthy.
2) Farmers use gallons of water daily, everyday. Which makes it a major use of freshwater.
3) Millions of people cook daily, and they have to use water. In fact most of they food that needs to be cooked need 's water, or too be cleaned. So thus makes it a major source of freshwater.
5) Honestly, nobody really uses water for fuel. If they do it's needed every few weeks or months. Which doesn't make it a major source of freshwater.