Chemistry

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

Clues

  • Carbon dioxide, methane and water vapour are examples of what? (10, 5)
  • Glass is made by heating limestone with sand and what else? (6, 9)
  • I am a gas. I am a product of incomplete combustion, I am colourless, odourless, toxic and can reduce the oxygen carrying ability of red blood cells. What am I? (6, 8)
  • If water is added to calcium oxide, what is formed? (7, 9)
  • Marble, chalk and limestone are natural forms of what? (7, 9)
  • Most polymers persist in landfill sites because they are not... (13)
  • What gas did the earth's early atmosphere mainly contain? (6, 7)
  • What gas dissolves in rainwater to form acid rain? (6, 7)
  • What process released oxygen, forming our atmosphere today? (14)
  • What term is used to describe a process that does not add carbon to the atmosphere because amount released is equal to amount removed? (6, 7)

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