Waste is an ineffective or unnecessary use of resources, which can be avoided in many ways. The following are some examples of common wastes and how to avoid them:

1. Food waste: About 311 million tons of food are wasted every year in the world, which is an avoidable waste. People can reduce food waste by planning to buy and store food, rationally planning meals and donating surplus food.

2. Energy waste: Energy is an indispensable resource in our daily life, but many people have the problem of excessive consumption and waste when using energy. We can reduce energy waste by replacing efficient and energy-saving equipment, reducing the use time of air conditioning and heating, and turning off unused electrical appliances.

3. Waste of water resources: Water is one of the necessary resources for human survival, but there is a shortage of water resources in many areas. We can reduce the waste of water resources by repairing leaking pipes, collecting rainwater and reducing the time of car washing.

4. plastic waste: plastic waste has caused serious pollution to the environment, and many plastic products are discarded after being used only once. We can reduce the production of plastic waste by using reusable shopping bags, cups and tableware.

In short, waste is an avoidable phenomenon. We can reduce waste and protect the environment and resources by changing our lifestyle and behavior habits.