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Q1) CFC= Chlorofluorocarbon. Chlorofluorocarbons (CFCs) are nontoxic, nonflammable chemicals containing atoms of carbon, chlorine, and fluorine. They are used in the manufacture of aerosol sprays, blowing agents for foams and packing materials, as solvents, and as refrigerants.
Q2)An enhanced greenhouse effect from CO2 has been confirmed by multiple lines of empirical evidence. Satellite measurements of infrared spectra over the past 40 years observe less energy escaping to space at the wavelengths associated with CO2. Surface measurements find more downward infrared radiation warming the planet's surface. This provides a direct, empirical causal link between CO2 and global warming
Q3)Yes it is wrong , A pit can be build at the school garden and the waste dry leaves along with mud staws of paddy green leaves can be put there and after one month can close the pit surely it will become a manure that can used for plants
Q4)The Taj Mahal is under threat of demolition because pollution has damaged it so much. India's Supreme Court has made a statement threatening to demolish the Taj Mahal or to shut it down. The statement came in response to the lack of aTaj Mahal is getting discoloured because of air pollution. The Mathura oil refinery produce pollutants like Sulphur dioxide and nitrogen dioxide.These oxide react with water vapours to form harmful acids such as sulphurous acid & nitric acid.ction taken to prevent and remedythe discoloration of the monument.
Q5)On Earth, an atmosphere containing naturally occurring amounts of greenhouse gases causes air temperature near the surface to be warmer by about 33 °C (59 °F) than it would be in their absence. Without the Earth's atmosphere, the Earth's average temperature would be well below the freezing temperature of water.
Q6)The marble cancer refers to the corrosion of building and statues made up of marbles by action of sulfuric acid and nitric acid. The SO 2 and NO xpresent in pollution get deposited on these buildings. These oxides absorb moisture from the air and get converted into respective acids and cause corrosion.