Question

which instrument would be most useful for identifying the chemical composition of a sta
seismograph
spectroscope
microscope
telescope with infrared filter

Explanation:

A spectroscope analyzes light spectra to identify chemical elements. A seismograph measures seismic waves. A microscope magnifies small objects. A telescope with infrared filter observes infrared light. Only a spectroscope directly identifies chemical composition.

Answer:

Spectroscope