A landfill is a designated area where waste materials are buried and managed. It is designed to safely contain trash, such as plastic, food scraps, and old furniture, preventing them from polluting the environment. Landfills are carefully engineered with layers of protective materials to keep harmful substances from leaking into the soil and groundwater. Over time, waste in a landfill decomposes, but this process can take many years. To reduce the amount of waste sent to landfills, people are encouraged to recycle and compost. By doing so, we can help protect our planet and reduce the need for more landfills in the future.