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

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

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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