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Air around earth is not uniform throughout the atmosphere. The density of air is gradually reduced with altitude. Although atmosphere is spread to 200 km around earth, the oxygen content beyond 5 km above surface of earth hardly supports any life. The composition of air..

Air Pollution - The major problem that the atmosphere is being subjected to is pollution. In India, about 100 million tons of pollutants are being added to the atmosphere annually. This figure is likely to go up in future. Polluted air is harmful to man and the biosphere on the ..

Introduction - The atmosphere resource of our world is unique and available to our planet only. No other planet is found to have similar atmosphere. Earth's atmosphere is a legacy from history of this planet. It was formed billions of years back. In the formative years, as the earth started cooling..

The composition of air that we breathe in is: Nitrogen - 78% Oxygen - 21% Carbon dioxide - 0.03 - 0.04% Hydrogen - traces Noble gases - traces Thus the air naturally contains more oxygen than carbon dioxide. This oxygen-rich air is taken in by the nostrils. In the nas..

Air pollution can be controlled by different methods depending on the source and the pollutant. The different methods are: One of the major causes of air pollution are the automobiles. The fuels being used should be lead-free as this will reduce the level of lead in the atmosphe..

Air Pollution - Air is an important natural resource providing the basis of life on earth. Entire biosphere depends on air. Air in the atmosphere provides oxygen to plants and animals, by virtue of which they are able to live. The composition of air..

Air pollution can cause number of health hazards to human beings, animals, birds, in addition to causing number of deleterious effects on earth's atmosphere as well as vegetation and even on some buildings. It is a global malady causing innumerable irreversible changes to ..

Air pollution can cause number of health hazards to human beings, animals, birds, in addition to causing number of deleterious effects on earth's atmosphere as well as vegetation and even on some buildings. It is a global malady causing innumerable irreversible changes to our pl..

Air is a Mixture of Different Gases - In earlier times Air was considered as an Element but it was found out to be a mixture. The following are the reasons for considering air as mixture and not an element or a compound. a) Air has a variable composition and ..

Summary - Troposphere is the blanket of air in which we live where all the weather is formed. Air is a mixture of 78.1% of nitrogen, 20.9% oxygen, 0.03 - 0.04% carbon dioxide, 0.94% noble gases and water vapour. Air is a mixture for the following reasons: - Air..