Green house Effect

A greenhouse is a house made of glass walls and glass root. Farmeres grow different vegetables,food crop and plant in this house.  The internal almosphere of greenhouse always remains hot even in winters. Sunlight penetrates inside and provide warmth to the plants. But the green house is disgned in such a way that the heat connot escape outside and is trapped by the glass walls. So greenhouse remains warmer in both day and night as well. 

The atmosphere of Earth also acts like a greenhouse.  Greenhouse gases are corbon diode, oxides of ntrogen and methane. These gases trap the radiations coming from Sun. As a result, the atmospheric temperature increases that is called greenhouse Effect.  During the day, the Sun warms up the Earth. At night, the Earth tends to release the heat back into the air. But heat is trapped by the greenhouse gases on the atmosphere.  This is the reason that Earth, on average,has 59F temperature. The rising temprature of Earth due to greenhouse effect leads to global warming. This increasing due to human ativities.