Question

this branch focuses on analysis, such as at a crime scene. choose analytical chemistry biochemistry organic chemistry inorganic chemistry physical chemistry theoretical chemistry

Explanation:

Analytical Chemistry is a sub - field of Chemistry that focuses on the analysis of substances. At a crime scene, various substances (such as fibers, chemicals, biological samples) need to be analyzed. Analytical Chemistry uses techniques like chromatography, spectroscopy etc. to identify and quantify these substances.
Biochemistry focuses on the chemical processes within living organisms. Organic Chemistry deals with carbon - containing compounds (excluding simple ones like carbonates). Inorganic Chemistry deals with non - carbon - containing compounds. Physical Chemistry deals with the physical aspects of chemical systems (like thermodynamics, kinetics). Theoretical Chemistry is more about developing and using theoretical models.

Answer:

Analytical Chemistry