Which of the following statements is an inference from a model (rather than an observation)?
A) The photosphere is made out of mainly hydrogen and helium.
B) The corona is hotter than the photosphere.
C) The photosphere emits visible light.
D) The Sun emits neutrinos.
E) The Sun's core is gradually turning hydrogen into helium.

Question

Quizplus · Accepted Answer

This statement describes a process that is inferred from a model of solar physics, rather than a direct observation. This process is known as nuclear fusion, and is the basis for the Sun's immense energy output. The other statements are direct observations of the Sun's properties.

Which of the Following Statements Is an Inference from a Model