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
Mechanical parameters Soil is a heterogeneous mixture of organic matter, salts, metal oxides, water and air with silicates as dominant constituents of varying size and composit

Importance of nutrition: We cannot live without food. Our hunger can be satisfied by any kind of meal, but to  remain healthy and free of disease, our body requires certain kin

What is the rate of species and how does this relate to finding transitional species? The rate of species stated on the time and specific species and environment at the time, t

Explain the Transport properties of Loop of Henle The loop of Henle, as shown in Figure, has a descending limb and an ascending limb. As the filtrate moves down the loop of Hen

To show that expired air contains carbon dioxide The two flasks are linked so that when you breathe by the T piece, all the air bubbles by the lime water in the flasks. One tub

If rate of evaporation affects the size of crystals that grow from solution allowed to evaporate at room temperature.

Ask question #Minimum 100 words acceptedYou are caring for a 29-year-old woman who is married with two small children, ages 1 and 3 years, at home. She is recuperating from a left

REQUIREMENTS 1. Stock register of a science laboratory 2. Loose paper sheets 3. Pen 4. Pencil 5. Rubber

Explain Protein  Protein  is  derived  from  a  Greek word  "PROTOS"  which  means  "Pre eminent", "jht or foremost"  or  primary matter.  This  name was  suggested  by  Berzi