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

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

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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