Introduction acid rain and ozone layer depletion (role of ozone layer to protect us from ultraviolet rays
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One of the tough concerns of today's era is the Acid rain which can have a devastating effect over all organisms living on the Earth. Acid rain is rain that is unusually acidic and corrosive in nature. It is rain with high levels of hydrogen ions (low pH). It may be defined as "rain water having pH less than 5.6".Acid rain poisons rivers and lakes. Fish and other animals cannot live in acid water.[4] It is also bad for buildings as the acid damages calcium carbonate stone. The acid dissolvesit. Many buildings and monuments have been damaged by acid rain.[4]
The ozone layer is a layer of ozone high up in the Earth's atmosphere stratosphere, between approximately 10 kilometres and 50 kilometres above Earth’s surface. The exact amount of ozone varies, depending on the seasons and the location. [1] This layer absorbs between 93 and 99 per cent of the ultraviolet radiation from the sun.[2] This radiation is dangerous to living organisms on Earth.
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