a 5 minute speech on the topic "ozone for our life" .Please don't cheat it is very important competition.PLEASE DON'T SPAM
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Answer:
Ozone layers blocks harmful UV rays from the sun and protects biological processes on the earth which are essential for sustenance of life. If not blocked by Ozone layer, exposure to ultraviolet radiation can increase the risk of cataracts, skin cancer and other detrimental effects among humans.
Today is the World Ozone Day which commemorates the date of the signing of the Montreal Protocol on substances that deplete the ozone layer in 1987. The theme of this year's World Ozone Day is "32 Years and Healing". Since 1995, International Ozone Day is observed on 16 September annually.
The good news about the Ozone layer which had once begun to deplete is this. The latest Scientific Assessment of Ozone Depletion completed in 2018, shows that, as a result, parts of the ozone layer have recovered at a rate of 1-3% per decade since 2000. At projected rates, Northern Hemisphere and mid-latitude ozone will heal completely by the 2030s. The Southern Hemisphere will follow in the 2050s and Polar Regions by 2060.
What's harmful for Ozone Layer?
Certain industrial processes and consumer products result in the emission of ozone-depleting substances (ODSs) to the atmosphere. The main ODS are chlorofluorocarbons (CFCs), hydrochlorofluorocarbons (HCFCs), carbon tetrachloride, methyl chloroform and halons (brominated fluorocarbons). CFCs are the most widely used ODS, accounting for over 80 per cent of total stratospheric ozone depletion, says a report published in
Explanation:
plz Mark it as branliest
Answer:
ALL THE BEST !
Explanation:
PLEASE MARK TO BRAIN LIST NOT BUT PLEASE GIVE THANKS AT LEST