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प्रश्न
How is the greenhouse effect created?
उत्तर
The ‘greenhouse effect’ takes place when the ‘sun’s rays heat the earth. This heat is absorbed by the surface of the earth and some of it is radiated back into the atmosphere. However, a part of this heat is trapped in the atmosphere by gases such as water vapour, carbon dioxide, and methane while the rest escapes into space. These gases let in light from the sun but prevent the heat from escaping like the glass walls of a greenhouse. They also act as a mirror and reflect back to the earth some of the trapped heat energy. The more greenhouse gases (GHGs) are present in the atmosphere, the more heat is trapped, subsequently making the earth warmer.
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संबंधित प्रश्न
Which one of the following is a Greenhouse gas?
Name the radiations which are absorbed by the green house gases.
Name two more greenhouse gases.
The diagram represents the greenhouse effect.
Which of the following – biofertilizers or nitrogenous fertilizers reduces the greenhouse gas – CO2? Explain.
A red hot ball is suspended from the ceiling of a room using a thin metallic wire.
Explain what role does the air in the room play in the loss of heat.
Explain the term CFCs.
The greenhouse effect is boon or bane? Give your opinion.
Explain the greenhouse effect with reference to the gases responsible for it and their sources.
Give two examples of Greenhouse gases.
