Science: gases in the air

elements from the periodic table, linked with respiration, evolution

gases in the air
elements from the periodic table, linked with respiration, evolution

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ARGON
BREATHING
CARBONDIOXIDE
EVOLUTION
HELIUM
HYDROGEN
KRYPTON
NEON
OXYGEN
RESPIRATION
J W N A B Z O R R W D F E G Y
D E V O L U T I O N I W R E O
G F D J C P T S U H H S E H J
P L V I N C S R U Y E A N E H
I C S L X J R B W Q D E W L I
N E G Y X O W T Y U G N R I P
G S A D M G I E V O O N F U Q
T V P W T O K D R E D O C M N
V N K E S S I D N S P T N Q W
T T W J K V Y D J O F P O R V
Q G G N I H T A E R B Y G P H
X N O I T A R I P S E R R I O
X S C D C X B V S C J K A O H
Q H E N H G Z K U O P I G C E
C G N U R K F N I Y A E A G M
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