Earth surface has a number of protective \"shields\". Match the potential hazard

Question

Earth surface has a number of protective "shields". Match the potential hazard with the "shield". From a cosmic radiation (e.g. stream of protons and electrons) by trapping it high above and making it spiral towards poles. From a UV radiation by absorbing it in upper stratosphere. From over cooling by trapping the infrared radiation emitted by Earth surface. From being bombarded by tons of small-to-medium size objects encounter with Earth. A. Heat trap in low stratosphere B. Ozone layer C. Magnetosphere D. Earth entire atmosphere.

Explanation / Answer

C) magnetosphere shield from a cosmic radiation

B) ozone layer shield from uv radiation

A) low stratosphere traps infrared radiation

D) earth atmosphere shield from bombarded objects

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