storms.Itactsasahugeenergymachine,changingsunlightintootherformsofenergysuchasheatandwind.Aspartofthisrole,theatmosphereregulatesthetemperatureontheEarth'ssurface.Firstitallowsonly46percentofthesunlightstrikingittopassthroughandactuallyreachtheEarth'ssurface.Second,carbondioxidegasintheatmospherecontrolstheamountofwarmthontheEarth'ssurfacethatisallowedtoradiate(发散)backintospace.Bythesetwocontrollingdevices,theatmosphereregulatestheEarth'ssurfacetemperature.Choosethebestanswerstothefollowingquestions.ordingtothepassage?TheozonelayerismuchthickeroverNorthAmericathanovertheNorthPole.Ozoneisatypeofanitrogengas.OzonecanabsorbsomeultravioletraysbeforetheyreachtheEarth'ssurface.Ozone?canprotectusfromanythingharmfultoourlife.Themainideaofthethirdparagraphisthat?.theEarthissurroundedbyalayerofozone
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