Explain how greenhouse effect comes about?
Answer:
Warming of the Earth's surface and lower atmosphere caused by water vapor, carbon dioxide, and other trace gases in the atmosphere. Visible light from the Sun heats the Earth's surface. Part of this energy is radiated back into the atmosphere in the form of infrared radiation, much of which is absorbed by molecules of carbon dioxide and water vapour in the atmosphere and reradiated toward the surface as more heat. (Despite the name, the greenhouse effect is different from the warming in a greenhouse, where panes of glass allow the passage of visible light but hold heat inside the building by trapping warmed air.) The absorption of infrared radiation causes the Earth's surface and lower atmosphere to warm more than they otherwise would, making the Earth's surface habitable. An increase in atmospheric carbon dioxide caused by widespread combustion of fossil fuels may intensify the greenhouse effect and cause long-term climatic changes. Likewise, an increase in atmospheric concentrations of other trace greenhouse gases such as chlorofluorocarbons, nitrous oxide, and methane resulting from human activities may also intensify the greenhouse effect. From the beginning of the Industrial Revolution through the end of the 20th century, the amount of carbon dioxide in the atmosphere increased 30% and the amount of methane more than doubled. It is also estimated that the U.S. is responsible for about one-fifth of all human-produced greenhouse-gas emissions. See also global warming.
http://en.wikipedia.org/wiki/greenhouse_...
hope this helps u
Easy- its the build up of carbons in the atmosphere, these are created by burning fossil fuels, CFC's, carbon based material manufacturing. The effect creates a build up in heat and raises the average temprature across the planet.
the suns rays shine down on the earth. Normally, they "bounce back" and go back towards the sun. We pullute the air with greenhouse gasses (by running our cars, having factories that pullute, etc) These gasses form a "shell" around the earth. (like a greenhouse) When the suns rays come towards the earth and "bounce back" The shell of gasses keep the rays from going back towards the sun. So the rays stay here and heat the earth. They raise the temperature everywhere and melt the ice caps at the poles. This is the greenhouse effect.
you guys are nerds.It simple.Just paint a house green and tha's how greenhouse comes about.In yur face.hahahaha!
the green house effect takes place in the following steps
1.the gases present in the atmosphere like CO2,water vapuor,methane ,ozone etc allows cozmic rays (short wave length)of the sun to reach the surface of the earth
2.these rays hit the surface and reflects back as infrared rays(heat rays)
3.the gases especially carbondioxide block them and does not allow the infrared rays to escape from the earth.
4.this increases the surface temperature of the earth making it a warm planet
The greenhouse effect is the rise in temperature that the Earth experiences because certain gases in the atmosphere (water vapor, carbon dioxide, nitrous oxide, and methane, for example) trap energy from the sun. Without these gases, heat would escape back into space and Earth’s average temperature would be about 60ºF colder. Because of how they warm our world, these gases are referred to as greenhouse gases.
Have you ever seen a greenhouse? Most greenhouses look like a small glass house. Greenhouses are used to grow plants, especially in the winter. Greenhouses work by trapping heat from the sun. The glass panels of the greenhouse let in light but keep heat from escaping. This causes the greenhouse to heat up, much like the inside of a car parked in sunlight, and keeps the plants warm enough to live in the winter.
The Earth’s atmosphere is all around us. It is the air that we breathe. Greenhouse gases in the atmosphere behave much like the glass panes in a greenhouse. Sunlight enters the Earth's atmosphere, passing through the blanket of greenhouse gases. As it reaches the Earth's surface, land, water, and biosphere absorb the sunlight’s energy. Once absorbed, this energy is sent back into the atmosphere. Some of the energy passes back into space, but much of it remains trapped in the atmosphere by the greenhouse gases, causing our world to heat up.
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