Depletion of ozone layer, Science

Depletion of Ozone Layer:

Since  the last decade or so, there is concern about the possible reduction in the ozone layer surrounding  the earth. Now the question arises, what had led to the depletion of this layer. The reasons are many. The foremost is the widespread usage of chlorofluorocarbons. These are gases which readily liquify when compressed. This makes them useful as refrigerants, propellants in aerosol cans, and in plastic foams. Chlorofluorocarbons are very stable and accumulate  in the atmosphere, where they react with ozone. Nitrogen oxides also play a significant  role in ozone destruction. It is being felt that the introduction  of more nitrogen oxides  into  the upper atmosphere by  jet planes flying there could decrease the ozone to dangerously  low level. The fear is that chlorofluorocarbons will deplete the ozone layer and allow more ultraviolet radiations  to reach the earth's surface. An  increased level of ultraviolet radiations would cause more skin cancer, affect crops, interfere with oxygen cycle and even distoti weather patterns.  

Posted Date: 9/28/2012 5:54:14 AM | Location : United States







Related Discussions:- Depletion of ozone layer, Assignment Help, Ask Question on Depletion of ozone layer, Get Answer, Expert's Help, Depletion of ozone layer Discussions

Write discussion on Depletion of ozone layer
Your posts are moderated
Related Questions
Mass communication: The well-known exponent of  the role of mass media in development, Dr. Wilbur Schramm, who headed a team of experts  to advise  the development of  infrastr

Why is the idea of modern human "races" is not considered a valid biological concept, and why is the idea of clinal variation more acceptable to biologists?

Mechanics: Another hnch  of  science which is, perhaps, the greatest contribution of Greek civilisation is mechanics. Mechanics developed out of  the necessities of  imgation,

Energy Flow in the Ecosystem The principal source of  energy for any ecosystem is sunlight. All food materials that we or other animals consume are manufactured directly or i

A) thickness of the respiratory membrane B) gas concentration gradients C) decrease in pulmonary ventilation D) lung surface area E) no exceptions

Vitamin E  (Tocopherols) Vitamin E is an essential fat-soluble vitamin that functions, at  least in part, as a lipid- soluble antioxidant. Presence of vitamin E was first revea

Air expands when heated To show that air expands when heated, fit an electric light bulb flask or a bottle with a single- whole stopper or cork which has a 30-cm length of glas

What common type of paper having substantial amounts of corundum and magnetite? Sand Paper

Ask question #Minimumwhat is that definition for cell theory? 100 words accepted#

Floating a razor blade Secure a used razor blade of the double edge type. Try floating it on the surface of water. Again watch the surface and see if the surface film dips unde