Executive Summery Chapter # 1ABOUT GREEN HOUSE1.1: WHAT IS GREENHOUSE 1.2: HOW DOES GREEN HOUSE WORK | page23 | Chapter # 2: About GREEN HOUSE EFFECT2.1: what is green house effect2.2: causes of green house effect | 45,6 | Chapter # 3:GRREN HOUSE EFFECT AND BANGLADESH3.1: Green house effect & Bangladesh3.2: Green house effect causing the global warming in Bangladesh3.3: Green house effect in Bangladesh 3.4: some of the pictures of pollution of the environment that contributing in Green house effect | 778-1011 | Chapter # 4: THE GREEN HOUSE EFFECT AND SOLUTION 4.1: how to reduce green house effect 4.2: steps for reducing green house effects | 1212-17 | Chapter # 5: conclusion 5.1: conclusion | 18 |
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1.1 What is a Greenhouse?
A greenhouse is a large structure, with the walls and roof most often built entirely of glass or plastic. It is a house for plants, often filled with equipment like screening installations, heating, cooling and lighting that help maintain a controlled environment perfect for plants. Greenhouses are used for growing all kinds of plants, including flowers, fruits and vegetables. It is often used to grow saplings in the late winter and early spring, which are later planted in the open in warmer weather. Pollination of the plants is done naturally, by using bees, or artificial pollination may be done, depending on the requirements. Greenhouses also protect plants from weather phenomena such blizzards or dust storms.
Have you ever wondered how does a greenhouse work? The widely spread (and believed) explanation is based on the varying transparency of glass to solar and thermal infrared radiation. This misconception explains that solar radiation enters the greenhouse through the glass, and heats up whatever is inside, which is true. It then says that all the heated surfaces emit longer