World’s Earth and Environment day
The word’ environment’ is derived from an old French word “environ “meaning encircle. As we are encircled by people, animals plants and physical objects which are part of our environment.
According to Stockholm declaration in June 1972, “ man is both a creator and a moulder of his environment .World environment day was stablish in 1972 by united nations at Stockholm conference on the human environment. Afterwards the worlds environment day is celebrated on 5 June of every year.
Earth day:- Earth day is an annual event April 22 demonstrate support for environmental protection. The theme of 2022 is our planet.
There are 3 major components of our earth planet.
Hydrosphere:- Our planet earth is full of water .it covers approximately three fourth of the earth’s surface.
Atmosphere: – It is a thin layer of gases separating earth from the outer space. The lower atmosphere
Is a mixture of molecules of three important gases. Oxygen(O2) , nitrogen(N2) and carbon di- oxide(CO2).
Lithosphere- The solid component of earth is called lithosphere. It consists of different layers like crust, mantle, outer core and inner core.
But unfortunately, naturally and anthropogenically our earth and environment get polluted as well as deteriorated.
Any substance present in the environment in harmful concentration which adversely alerts the environment by damaging the growth rate of a species and by interfering in food chains is called environmental pollutant and its process is called environmental pollution.
There are many type of pollution.
Sources of pollution: –
Natural sources
Man-made or anthropogenic sources: –
There are some laws to protect environment: –
The Water (prevention &control of pollution) act, 1974
The Air (prevention &control of pollution) act, 1981
Wildlife protection act, 1972
The forest conservation act, 1980
The environment protection act,1986
There are some ways by them we can protect our mother earth and environment
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