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

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

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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