Many food and food scraps can be used again, but people throw them away as uselessness. Under-utilization of food leads to an increased demand for food. This increases in demand for food, which leads to an increase in food production. The increase in food production means that more land is needed for growing, and more machinery and labour is needed for production. As a result of over-cultivation and over-production, the environment will become increasingly polluted. A less-ideal environment limits the land and agricultural resources available for farming and significantly reduces food production. Some food is also endangered. If people continue to under-utilize food...this would become a vicious circle.