Greenhouse

Greenhouses are special buildings that help plants grow. They have walls and roofs made of glass, plastic, or other materials that trap heat and protect the plants inside from cold weather. The glass lets in the sun's heat and light, which helps the plants grow. Inside, the temperature is usually warmer than the temperature outside, which makes plants happy and helps them grow faster. People put special machines inside greenhouses to keep the air warm and full of water vapor that plants need to grow. They also make sure there is enough light, air, soil moisture and nutrients for the plants.