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

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

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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