Determination of the chemical composition of the atmospheres of the planets is carried out most effectively by what type of study?
A) Photometry-the measurement of the fading of light from their moons as they pass behind the planet's atmosphere
B) Measurement of their relative mean densities
C) Measurement of their atmospheric temperature
D) Spectroscopy-the measurement of absorption features in their spectra

Question

Quizplus · Accepted Answer

Spectroscopy can identify the specific wavelengths of light absorbed by different elements and compounds in a planet's atmosphere, allowing for the determination of its chemical composition.

Determination of the Chemical Composition of the Atmospheres of the Planets