2.1 Environmental Studies- The atmosphere- The composition of the atmosphere

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X G L L O S R S V O O V T V J Q J O V S M
S N G I M B J Q A I P T R O V X X L K M L
S E D E U G H O H N H N T R H E Y S U S D
F R N R I O N D G I N M I P T W P W U E K
S E N E R Y C H D I N N E D O X V I R T X
P H X H B C A C O I E U Y O X Y G E N Y N
D P T P I U R K U Y G N D M T L H I N A G
H S W S L Y B I O B O U F C I P B E B X K
C O F O I E O Y M Y R C Y T S S S T E H F
B P O M U W N R E A T L B O F S H R O V R
W O I R Q Y D A V I I E T H G D E U D M R
S R N E E O I T A K N A V K S H C D S M Y
U T F H C O O N F M R R X J P B L X L O G
A A E T I R X P J T N F O S G Q N G R E M
H J S K M R I G S P D U O N E U L K G V F
M K A Q A B D R N O J S I X N J U E A L Q
D H T N N Q E B S L E I L A O H U Y P P C
O K J C Y A X S G M B O O R Z J E A W I Y
F F S C D U N X B V L N U S O O G D O T H
D X I L I K P L E K F V Y T L W A V E S N
Q O I V K H M A W W N Q L B E R U Y L P G

Clues

  • A combination of active processes that cancel out each others effects so that there is no overall change. (7, 11)
  • The layer of the atmosphere that absorbs UV and contains the ozone layer, temperature increases with altitude here. (12)
  • The layer of the atmosphere where meteors burn up, temperature decreases with altitude here. (10)
  • The layer of the atmosphere where the weather occurs, temperature decreases with altitude here. (11)
  • The layer of the atmosphere where X-rays are absorbed, space shuttles orbit here. (12)
  • The release of energy during the joining of the nuclei of small atoms (7, 6)
  • This gas makes up 0.000007% of the atmosphere, and absorbs UV light in the stratosphere. (5)
  • This gas makes up 0.038% of the atmosphere, and is used in phosynthesis. (6, 7)
  • This gas makes up 21% of the atmosphere, and is used in aerobic respiration. (6)
  • This gas makes up 78% of the atmosphere, and is part of proteins. (8)

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