If you found absorption from ________ in the spectrum of a planet, you could conclude that it might contain some form of life.
A) oxygen only
B) methane only
C) water vapor only
D) oxygen, methane, or water vapor
E) carbon dioxide

Question

Quizplus · Accepted Answer

The presence of oxygen, methane, or water vapor in a planet's atmosphere can be indicative of potential life, as these compounds are often associated with biological processes. Oxygen and methane can be produced by living organisms, and water is essential for life as we know it.

If You Found Absorption from ________ in the Spectrum of a Planet