Conditions for life on Earth

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

Clues

  • What is not a function of water? (4, 4, 3, 5)
  • What produces seasonal climatic changes? (3, 6, 5)
  • What produces the energy for photosynthesis? (8)
  • Without what would the Earth be to cold to support life? (6, 7)

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