The earth and its atmosphere

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QLATSOAUDVCSSILICONI OCXKQAERKCICLQYZULNE DVMCVLKEGXYBROXCTESO KMANTLETUORCGUCURRYR TFRGRPFHTFNOHTSVOEUV NVLXTBBXRSYMUHJTPHWE SSRYNAMMRCIPGYYWOPVM OTPHOPLZNCNOODWESSVM DNOSRFSRIANUMRXTPOKO IETKIIJITLENUOLKHMLU UMAXJRUARCRDIGLNETPT MESDVZDSOITSNEZSRAAE ULSJENFCGUTZANBNEUVR IEIJJBGLEMLVTIFEALMM NEUJANYXNBFEICNGBNYQ IRMTWDDZXUGDTRYYFJMD MOWLAYERSWUNGWEXKMAQ UCRMAGNESIUMCSJODNSC LXCEFKTDTDLPYGPFVLSO AQSALPOZMXGUIRVSIBWO
1.
crust
2.
mantle
3.
core
4.
outer
5.
inner
6.
troposphere
7.
atmosphere
8.
oxygen
9.
nitrogen
10.
argon
11.
air
12.
layers
13.
compounds
14.
elements
15.
mass
16.
aluminium
17.
titanium
18.
magnesium
19.
sodium
20.
calcium
21.
iron
22.
potassium
23.
hydrogen
24.
silicon