ENVS keywords

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

Clues

  • A device fitted to vehicle exhausts to remove pollutants such as NOx (9, 9)
  • A haze in the atmosphere caused by the reaction of pollutants with sunlight (13, 4)
  • A pollutant released by chemical reactions between primary pollutants and the environment (9, 9)
  • Equipment that spins suspended solids out of gaseous effluents (7, 9)
  • High energy nutrients such as carbohydrates from dead organic matter (7, 9)
  • Nutrients such as nitrates and phosphates (9, 9)
  • Organic insecticides containing phosphorous (16)
  • The breakdown of remaining organic matter during sewage treatment (9, 9)
  • The frequency at which an object naturally vibrates (8, 9)
  • When the temperature is lower than normal so warm air lies above cold air and slows diffusion (11, 9)

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