select the correct answer.\nsome physical evidence was obtained from a crime scene. for which of these…

select the correct answer.\nsome physical evidence was obtained from a crime scene. for which of these pieces of evidence would forensic scientists conduct an identification test to determine its specific chemical composition?\na. a hair strand\nb. a black powder\nc. a glove\nd. bloodstains

select the correct answer.\nsome physical evidence was obtained from a crime scene. for which of these pieces of evidence would forensic scientists conduct an identification test to determine its specific chemical composition?\na. a hair strand\nb. a black powder\nc. a glove\nd. bloodstains

Answer

Brief Explanations:

Identification tests for specific chemical composition are used for unknown substances. A black powder is an unknown material where determining its chemical makeup (e.g., if it's an explosive, drug, or other substance) requires such testing. Hair strands, gloves, and bloodstains are typically tested for DNA, trace evidence matching, or blood type, not specific chemical composition identification of an unknown material.

Answer:

B. a black powder