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

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

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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