Green House Effect

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Overview

An artificial house which is made of glass or plastic inside where the temperature can be more than the outer environmental temperature is called greenhouse. This note provides information about Advantages and disadvantages of Green House Effect.
Green House Effect

The artificial house which is made by glass or plastic inside which the temperature becomes more than the outer environmental temperature is called greenhouse. The artificial greenhouse provides controlled environment for plants.

Advantages of artificial greenhouse
  1. It provides the controlled environment for plants inside it. The plants which can be found in the desert can be grown in the Himalayan region inside it.
  2. Those plants which are obtained in summer can be planted in winter inside it.

The earth as natural greenhouse

Various gases are presented in the atmosphere for example oxides of carbon, oxides of nitrogen and others act as a natural blanket for the earth. So, they let the short wave light rays of the sun reach the earth surface. But when the long wave light ray tries to return back to space, the layer of this gaseous layer and remain trapped in the earth. This is called natural greenhouse effect and earth act as a natural greenhouse.

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Disadvantages of greenhouse effect:
  1. Global warming is caused by the greenhouse effect. It influences forests directly. The plants found in the tropical region are also found in the temperate region gradually.
  2. It may cause melting of snow in the polar region.
  3. It may increase sea level by which many islands will disappear into oceans.
  4. Agriculture system is badly affected.
  5. The water cycle is also affected by the greenhouse effect.
  6. Due to change in temperature of the earth, many skin and eye diseases can be caused.
  7. It is helping in spread of harmful insects
  8. It causes an adverse effect on the ecosystem.
Things to remember
  • The artificial house which is made of glass or plastic inside which the temperature will be more than the outer environmental temperature is called greenhouse. 
  • when the long wave light ray tries to return back to space, the layer of this gaseous layer and remain trapped in the earth. This is called natural greenhouse effect and earth act as a natural green house.
  • Global warming is caused by the greenhouse effect.
  • Various gases are present in the atmosphere for example oxides of carbon, oxides of nitrogen and others act as a natural blanket for the earth. 
  • It includes every relationship which established among the people.
  • There can be more than one community in a society. Community smaller than society.
  • It is a network of social relationships which cannot see or touched.
  • common interests and common objectives are not necessary for society.
Videos for Green House Effect
The Greenhouse Effect
The Greenhouse Effect
Questions and Answers

One advantage of an artificial greenhouse is that because of the high temperature we can grow plants in off seasons as well.

Greenhouse effect is the natural phenomenon in which solar radiation is absorbed by an artificial layer of gases like carbon dioxide, nitrous oxide, methane, etc. but as it is not reflected/radiated back, the temperature of the earth increases. As the atmosphere acts as a greenhouse, this effect is known as greenhouse effect.
The four greenhouse gases are carbon dioxide, nitrous oxide, methane and chlorofluorocarbon.
Because of the greenhouse effect, the temperature of the earth is maintained within a range making life possible on this planet. If there was no greenhouse effect, the temperature of the earth would be less by 39°C by now. The earth would be covered with ice making life impossible.

The four effects of the increase in the quantity of the greenhouse in the atmosphere are:

  1. The temperature of the earth increases bringing out a change in the weather and affecting the whole environment.
  2. It affects the water cycle disrupting the systematic working of agriculture.
  3. The polar ice cap and glaciers start to melt causing an increase in sea level.
  4. The temperature of the earth's surface increases.

In the artificial greenhouse, the temperature is high and the conditions are like those of summer. Because of this increase in temperature called greenhouse effect, summer vegetables can be grown in winter in artificial greenhouses.

Light and short wavelength infrared rays from the sun penetrate the ozone layer and are absorbed by the soil, plants, etc. raising the temperature. These in turn emit infrared rays but because of their relatively low temperature, this has a long wavelength and is not transmitted by the ozone layer. So, the temperature increase in the atmosphere becomes the cause of greenhouse effect.

The artificial greenhouse has a higher temperature in it than its surroundings. So, different plants can be grown in off seasons as well. Summer plants can be grown in winter.

The disadvantages of greenhouse effect are:

  1. Global warming is caused by the greenhouse effect. It influences forests directly the plants found in the tropical region are also found in the temperate region gradually.
  2. It may cause melting of snow in the polar region and increase sea level by which many islands will disappear into oceans.
  3. Agriculture system is badly affected.
  4. The water cycle is also affected by the greenhouse effect.
  5. Due to change in temperature of the earth many skin and eye diseases will be caused.
  6. It is helping in spread of harmful insects
  7. It is causing adverse effect on the ecosystem.

Various gases are present in the atmosphere for example: oxides of carbon, oxides of nitrogen and others act as a natural blanket for the earth. So, they let the short wave light rays of the sun to reach the earth surface. But when the long wave light ray tries to return back to space, the layer of this gaseous layer and remain trapped in the earth. This is called natural greenhouse effect and earth act as a natural greenhouse.

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