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What do we mean by albedo?

albedo mean
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What do we mean by albedo?

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Give examples of materials with high and low albedos.” Albedo “describes the fraction of sunlight reflected by a surface” (CP Glossary). An albedo of 0 designated no reflection and an albedo of 1 designates that all light is reflected. Clouds, snow and ice have high albedos and rocks have low albedos. Amongst the terrestrial worlds the Moon has the lowest albedo (.07) and Venus has the highest (.72). “What types of gases absorb infrared light? Ultraviolet light? X rays? Give a few examples of greenhouse gases. What is ozone, and what does it do in our atmosphere?” Infrared light is absorbed by greenhouse gases such as carbon dioxide, methane, and water vapor. Ultraviolet light is absorbed by ozone and X rays are absorbed by virtually all gases. Ozone is a molecule of three oxygen atoms (O[sub]3) and its absorption of ultraviolet light keeps the greenhouse effect from escalating to the point where the planet would be unlivable (like Venus). “Briefly explain how the greenhouse effect mak

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