Urban Agriculture involves growing plants and raising animals in and around urban areas. Typically, urban agriculture uses intensive production methods that recycle nutrients, improve soil, and encourage plant and animal growth without using hazardous chemicals. Its products are processed, distributed, and consumed within the same urban area in which they are produced. Types of urban agriculture vary greatly in size, shape, and purpose and by operator. They include home gardens, community gardens, youth and school gardens, demonstration gardens, aquaponics, edible landscaping, and entrepreneurial farms. Urban agriculture occurs in a variety of places, some unconventional, such as vacant lots, on patios, rooftops, and even trucks.