The albedo of the Earth system has been determined to be ________ percent.
A) 2
B) 15
C) 31
D) 75
E) 100

Question

Quizplus · Accepted Answer

The albedo of the Earth system is defined as the fraction of solar radiation reflected back into space. It is estimated to be about 31%, which means that about one-third of the solar energy that reaches the Earth's surface is reflected back into space. This value varies depending on a number of factors such as cloud cover, ice cover, vegetation cover, and the properties of the surfaces that make up the Earth's landmasses and oceans. The albedo plays an important role in regulating the Earth's climate system, as it affects the amount and distribution of solar radiation that is absorbed by the planet.

The Albedo of the Earth System Has Been Determined to Be