### structure | building:

Greenhouse
* Many greenhouses also have glass or plastic walls
  - use both they have vents and they use a shade cloth for cover
* Most greenhouses have adequate humidity.
* Some greenhouses have inflatable walls on the side
  - use the Clinton River for irrigation.
  * Many greenhouses also have glass or plastic walls. Greenhouses get hot during the day
* allow researchers to simulate crops in the field.
* are another sure-fire way to mimic the preferred habitat of ginger
  - difficult pest environments
  - expensive to build and operate
  - important locally
  - more humid than most living areas
  - sources of beautiful plants in an atmosphere that can be relaxing and rewarding
  - special buildings where plants are grown
  - structures designed to retain heat
  - used to grow crops in cold countries such as Canada
* can provide the damp environment required for their development
  - trap herbicide vapors around plant foliage, which can lead to injury
* come in many different sizes.
* gases Each greenhouse gas has a different potential to warm the Earth's surface
  - main reason for quicker northern winter warming
* growing separate hobby, with different gardening habits and behaviors.
* help to protect crops from frost.
* includes bases
  - boilers
  - ceilings
  - courtyards
  - doorknobs
  - elevator cars
  - elevators
  - floors
  - foundation stones
  - foyers
  - hinges
  - interior doors
  - readsides
  - roof peaks
  - roofs
  - room light
  - sections
  - staircases
  - storeys
  - window frames
  - windowpanes
* is the illuminating history behind a scientific idea that fills today's headlines.
* often have computer controlled climate and trickle irrigation
  - spray their plants with long-lasting systemic poisons to control pests
* phenomenon of the atmosphere.
* provide plants the perfect indoor growing conditions.
* require shade cloth to help prevent overheating and plant burn.
* set of experiments to study the effect of space flight on plant development.
* use passive heating to stay warm, even in cooler seasons.
* usually have vents that can be opened to let excess heat out.
+ Frost: Water :: Weather
  * Many plants can be damaged or killed by freezing temperatures or frost. This varies with the type of plant and tissue exposed to low temperatures. Greenhouses help to protect crops from frost.
+ Garden, Types of gardens: Home :: Leisure :: Plants
  * There are many types of gardens. People have small private gardens in the backyard outside their house. Some gardens are built indoors in malls, public buildings, or greenhouses. Greenhouses are special buildings where plants are grown. A greenhouse has a transparent glass or plastic roof and walls that let sunlight in.
+ Greenhouse, Gardening in greenhouses
  * Gardening and growing plants in greenhouses is different from growing plants outside. No rain can get inside a greenhouse, so gardeners have to put water on the plants. As well, greenhouses can get very hot from the sun's heat, so gardeners have to make sure that it does not get too hot for the plants. Greenhouses usually have vents that can be opened to let excess heat out. Some greenhouses have electric exhaust fans that automatically turn on if it gets too hot in the greenhouse
  - Role of green houses
  * Many vegetables and flowers are grown in greenhouses in late winter and early spring, when it is still too cold to grow plants outside. Then these plants are moved to the soil outside as the weather warms up. Greenhouses are used to grow crops in cold countries such as Canada
  - Types of greenhouses: Gardening :: Buildings and structures :: Home
  * Greenhouses come in many different sizes. Some people have small greenhouses in their backyard, outside their home. Plant companies have large greenhouses. Their structures range in size from small sheds to very large buildings. They are used by people with smaller gardens, those on a budget as well as those that want to start off their seeds and seedlings in a protected environment as we as those growing things that need warmer conditions - say tomatoes or even beans