when sun will die...
By Crilli
@Crilli (2890)
Italy
10 responses
@thefox (669)
• Italy
28 Nov 06
with the whole pollution that is on our planet I don't know what will happen in the next years, there has been above all already quite a lot changes on the climate, the seasons, the glaciers he is slowly loosening, if the hole of the ozone is magnified, on our planet there will be no more possibilities of life.
Bye
The terrestrial stratosphere relatively contains a tall concentration of ozone, a gas constituted by three atoms of oxygen (O3) and that it represents a real screen towards the dangerous ultraviolet radiations (rays UV) coming from the sun. Every year, during the spring of the southern hemisphere, the concentration of the ozone stratosferico in the situated area in proximity of the South Pole decreases because of natural variations. Unfortunately, because of the pollutants released in atmosphere, since halves the seventies this periodic diminution has become more and more great, so much to be induced to speak of the phenomenon as of the “hole of the ozone.” Recently a thinning of the band of ozone is individualized however also in a small zone to the pole North, above the Arctic Sea, done what he could prelude to the formation of another hole from the opposite part.
In effects the phenomenon doesn't represent nothing that the most evident aspect of the general and gradual diminution of the ozone in the stratosphere. The problem is extremely important in how much a reduction of the effect schermante of the ozone involves a consequent increase of the rays UV that comes on the surface of the Earth. In the man the excessive exposure to these rays is correlated to an increase of the risk of crab of the skin, produced following the induced mutations in the Dna of the epithelial cells. The ultraviolet rays can cause besides a partial inhibition of the photosynthesis of the plants, causing a deceleration of the growth of it and, in the case you deal with cultivated plants a diminution of the crops. The rays UV can also decrease the activity photosynthetic of the fitoplancton that is found at the base of the chain food harbor, causing accordingly a notable lack of balance to load of the oceanic ecosystems
@cooldude8889 (2609)
• Singapore
16 Dec 06
The sun will not die.Our earth will die first before the sun.The sun is rotating to the earth and after millions of years,the earth will die.