Which of the following correctly describes the meaning of albedo?

Question

BlackTom AI · Accepted Answer

The question asks about the meaning of albedo and what it describes about a surface's interaction with light.
The given answer choice states: 'The higher the albedo, the more light the surface reflects, and the less it absorbs.' This aligns with the standard definition of albedo in planetary science and climatology, where albedo quantifies reflectivity: a high albedo means a surface reflects a large fraction of incoming solar radiation and absorbs less, while a low albedo means the opposite.
Why this statement is correct: albedo is essentially a ratio of reflected to incoming light. When a surface has a high reflectivity, photons bounce off more readily, reducing absorption and often leading to cooler surface temperatures in that area. This is a fundamental principle used to compare surfaces like fresh snow (high albedo) versus asphalt (low albedo).
Why no other choices can be evaluated here: the data provided does not include additional answer options to compare, so there is nothing to analyze as incorrect options. If other options existed, we would examine them for common misconceptions, such as confusing albedo with emissivity, attributing albedo to absorption alone without considering reflection, or conflating albedo with color alone without accounting for spectral reflectance.
In summary, the stated option correctly captures the core meaning of albedo: higher reflectivity (higher albedo) means more light is reflected and less is absorbed.

EARTHSC 2205 SP2025 (19389) Atmospheres

Which of the following correctly describes the meaning of albedo?

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