When the fossil fuels are burned they produce energy and give of harmful gas
Seashell - From water to sand
That’s the only one I know but sorry
Answer:
The difference between molecular biology and comparative biochemistry are:
Molecular biology is the branch of biology in which we study about the chemical composition and structure of atoms of macromolecules such as protein and nucleic acid which are the main component of life forming substances, while Comparative biochemistry is a branch of chemistry in which we study the similarities and differences between different biological processes that occurs in different living organisms.