大气层有几层?分别是哪几层?大气层对人类有什么帮助?

来源:学生作业帮助网 编辑:作业帮 时间:2024/09/08 14:41:10
xYYOK+re \2$%$3y1x`0`U_na[*k9wSyRNd{C\.ʊHcJE\[˙?ee˭~D)ҧ^ﰩ/(~}_D>%ާJ]sxwnDd2 Qػшg*@5{ ]No *2h"(b&HDHT[:}BO& E RZŲoKH구rJYJwqÃj2"0[XH?BF)#Cn&쓶6h`Z; ?,<%ݰggBڀ7h v)Zc'@i E(q!zV@T '*]RȐI-ٹ9Y|Hb#.vwWv?8 , JcE3NѪ.|ޢ]xNv<i9AF`Ⱦ%/vEbNܾ5 m [_I 5O0C(6yl<ӫ0U8"[%(I5dA0d +FݍCAJk8m.bF\`wD@6BϨ0x7i'{G[Gt$[87Χl49CkRx-SkVB[\Na^gWXć58%x * %+0vђlM( ׎H@CJny9XV1X9نEₑ@oդV~_&f1ږK)_!efCXy2k#y_mP&D2F"``RoAWZ?{(MdM4Ekvs;ԉ`O!MZXꆸkͨN2=;#,%A9%PFՋA OrL *6Rd.O03]5?x;0A_:Pi֧KW5j n= ӑm<(C3[]bўN9C7ܛ `L@tu Y] C+D̻5ޕJ?LE"/1zp~e:5sׄi J˾q9L=r윏 *<_bݮ]@0rt*A^ dJȽSD6*7TPk|@,E-mɬ쬪n%.w-s]^Uy nF̠@sQ.Ex0dD-l^v.I 0ՠ:oVuH솦Yj6hB n֖"K(ER<`޹wWI^Ax8%8ʯ_V'U */BJjtr.t}( JKv=,z!rIL!QP^]p8e6 C݄i{' -Sqld k=3MgmlӸsС녗EApe*3C$ gBj? 褃?%Xp{~a)#(EK!l 0 P-BJMzEhu~">&B9oeB9x LŁU0qhyJN]<=ĠG9;$(Kgr"4|$Oҫk{'] D+ '>3_{@gLQVp=W|~OΨ $ |CE=^'IfÔָN z'yOͻ-|ew޾yq??0&cDž^ Mm