A- Biochemistry is the study of biomolecules in living organisms. It provides structure, functions, and interaction of biomolecules (Proteins, Lipids, Nucleic acids, etc.) B-Analytical chemistry studies the separation of particular substances from matter by using different instruments. C-Geochemistry is the study of the chemistry of earth materials, its oceans, also solar planets, and the chemical process within them. D-Nuclear chemistry is the branch of science which deals with radioactivity, nuclear processes and describe the different type of radiations like alpha, beta, gamma. E-Inorganic chemistry is the branch of chemistry that deals with inorganic compounds (not contain carbon ), and their structure, properties, reaction.