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

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

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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