Greenhouse

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In horticulture, a greenhouse is a structure designed to regulate the temperature and humidity of the environment inside it with a view to growing plants. There are different types of greenhouses, but they all have large areas covered with transparent materials that let sunlight enter and that inhibit the loss of the sun's heat. The most common materials used in modern greenhouses for walls and roofs are rigid plastics made of polycarbonate, plastic film made of polyethylene, or glass panes. When sunlight shines into a greenhouse the temperature inside increases, providing a sheltered environment for plants to grow — even in cold weather. The terms greenhouse, glasshouse, and hothouse often refer interchangeably to buildings used for cultivating plants. The specific term used depends on the material and on the heating-system used in the building. As of 2026, greenhouses are more commonly constructed with a variety of materials, such as wood and polyethylene plastic. A glasshouse, on the...

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