帮忙回答GIve an example of how the dependency of human life on food ?不要翻译,是回答,求大神帮忙

Food is the only source to provide nutritional support for our body. The human body cannot survive without food and water for not a long period of time. In fact, according to scientific research, the longest a person can go without water is 10 days--without food, it's four to six weeks.
For example, in 2008, about 127 tons of rice was conumed in China.