Each codon of a DNA molecule code is for a specific __AMINO ACID__
Take India for example.... people use the bathroom and bathe in rivers!
Now lets say we look at the US our pollution comes from factories, trash that people dont throw away, fertilizers and many more... but the difference is, that in developed countries like the US our water is filtered.... And in India water is not safe to drink
A Respiration by animals CO2 is being added.
B trees burning same
C tree leaves removed
D oil added
Radiation is the thermal energy transfer