Air pollution is caused mainly by the burning of fossil fuel, which include coal and oil. When coal is burned it releases a large number of airborne pollutants and toxins in the environment. It includes sulfur dioxide, nitrogen oxides, mercury and lead, and various other metals.
Carbon dioxide is considered as a good indicator of how much fossil fuel is burnt and how much of pollutant is released into the atmosphere.
1) Mutations are caused by changes in nucleotide bases. these altered base formed different amino acid depending upon nucleotide base sequence that code specific amino acid. ... even though some mutations, can have a more effect on amino acid coding, which can affect what kind of proteins are produced.
