Green-house effect ,acid rain,ozone layer depletion

Green house effect

Cause: Gases like CO2, nitrogen oxide,ozone and chemical like chlorofluorocarbon (CFC) are responsible for green house effect.

Carbon dioxide CO2 is the chief gas responsible for the Green-house effect

Green house effect

Effects:-

 It causes appreciable rise in temperature of earths surface. 

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Remedy: 

Green house effect can be tackled 

by reducing the rate at which the fossil fuels like coal are burnt.
By using renewable sources of energy

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     Ozone layer depletion: 

Causes:-
This ozone layer acts as an umbrella
against the harmful ultraviolet radiation
reaching to the earth. When chemical
pollutants such as chlorofluorocarbon
(CFC) emitted from refrigeration and other
industrial operations, nitrous oxide pollute
the atmosphere and some of the ozone is
broken down and it results in decrease of
ozone concentration in the atmosphere. In
consequence, more ultraviolet radiation
reaches the earth.

Ozone layer depletion

Effects:
1. Damage of immune system
2. Disturbance in ecosystem,
 3. Effect on crop yield,

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4. Increase of skin cancer and eye ailments,
5. Shorter life of paints and plastic.

Remedy:
 For protecting the ozone layer,
the emission of chlorofluorocarbon (CFC)
should be restricted.

Acid rain: 

The rain water is slightly acidic. The acidity level increases with SO2,NO2 etc., The acidity in rain water is caused due to the formation of secondary pollutants such as sulphuric acid H2SO4 ,nitric acid HNO3
and hydrochloric acid (HCl) due to the reaction of water vapours with these gases.

Acid rain

It has been specified that when the pH of
the rain water is less than or equal to 5 the
rain termed as acid rain.
 2/3 of acid rains is due to SO2, which is produced mainly by the burning of coal and oil in industries.
The SO2 pollutant leads to H2SO4 acidity
Another primary pollutant responsible for
1/3 of acid rains is NOx which is produced
mainly by the automobile emissions.
 The NOx pollutant leads to HNO3 acidity.
Acidic rain damage forests, crops,
buildings, monuments (eg: Taj Mahal Monument).

Global warming:

 Global warming is considered to be the outcome of the air pollution caused by the man-made sources.
The Global warming may lead to burning of crops and may also cause forest fires.