Do you know these key words?

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LGKGRPOLLUTIONJGKBBV BOHXCEBOPNVDAMAGESIY GPPWEIRVUNUHIXARPGVJ WLSJCINAGROTRAAAPPPT OAWMECOPDOVURTKWKYTR WNLFCXOBSOYNIIDQZPDD OETCKIXFEDJDXNTORWXK NSPKPTEXOTHZIRDIVOVY YMZRHAGSHURQESZOOEZF OIGSGNULROMEOIEEOUHD CEVPCRYDRMXOXDIASRSX JCOTRAEHSKHUZNTSSKPE WKYDCGTZBKAXYOEAXETR NKRAANGJYWKPEZNYQJHE SCLANOFMYAZVXLBEKOMS QSMOCWGMBELACIMEHCXY URNMEKZSDXRIECJSKVMD DAFCRQQFGFZCSXSRTCRN KCKFAVZBJOWISGJUNPYY GYXJOSYSITRUCKSFBLNE
1.
Air
2.
pollution
3.
Cars
4.
planes
5.
trucks
6.
ozone
7.
organic
8.
nutritious
9.
lung
10.
cancer
11.
heart
12.
disease
13.
COPD
14.
excess
15.
damage
16.
indoor
17.
outdoor
18.
chemical
19.
smoke