Natural Resources Notes

Acid Rain:

• Oxides of Nitrogen, Sulphur and Carbon accumulate in the air which reacts with water and produces acid that comes down earth with rain. This is known as acid rain.

• These acids can cause the decolorization of buildings, damages the sculpture, destroys the soil quality, result in weathering of rocks, affect the biotic components etc. 

Smog:

• Accumulation of gases in the environment tends to increase the greenhouse effect which leads to the global warming.
• Global warming is defined as the tremendous increase in the temperature of earth’s atmosphere due to change in the normal concentration of gases.

• Global warming has drastic effects on biotic and abiotic components.

• Photochemical smog, acid rain and global warming can affect different organisms in different ways.

Effect on humans:

• Inhalation of polluted air causes many different types of diseases in human beings.
• Human beings suffer from diseases of trachea and lungs.
• Diseases like cancer of lungs, damage to kidney and night blindness are caused.
• Blood pressure increases/decreases.
• The reproduction power of men decreases.
• Life span decreases.