Word Search Puzzle CROOSWORDOnline version An atmosphere is a layer of gases surrounding a planet or other material body of sufficient mass[that is held in place by the gravity of the body. An atmosphere is more likely to be retained if the gravity is high and the atmosphere's temperature is low. by Juan Casan 1 PHOTOSYNTHESIS 2 PHOTOSYNTHESIS 3 NITROGENCYCLE 4 NITROGENCYCLE 5 STRATOSPHERE 6 STRATOSPHERE 7 OZONELAYER 8 MESOSPHERE 9 TRACEBASES 10 ATMOSPHERE 11 MESOSPHERE 12 TRACEBASES 13 METHANE 14 WEATHER 15 AMMONIA O K E X R B T P A S T R A T O S P H E R E G Y E M H I D K N G U U T R A C E B A S E S B A O E H E Y I I E E U O D Y E O S I Q B A E O E T J Y I O T U K F U M O A A O I U O D R F E H D U I U R U E A P X P A V O Q C K E E U M A T Z D I O O R O H I O U X T S I H R U B Q N U C E B G A T A O H Z E U I U T E M E S R E O U I I E S U N T A Y E S D A H I R A A M M O N I A N Z D O O I Y E S E P E E E E O E N A R O Y C F P N S B H E W S K H I R U T O E O W W E Y E Z A Y T B W O J P C E E U I Q J I U E A C P K E N O S S B S J H A Q Z A Y U O I V E L P R Y T Z E X O U P T T R I O U L A Q X X E I S E H M L S Z S U I M I F K O U Q W I C Y O I E E O E I O J X C O Y E L A P A A L G T U O K S M K T N Z K W S L E G I T U I E O Z G D U I F A E E Q W O P P J A U U T H H A G M C I S R N K L D G J H O S I F A V P A D R C N B T R U Z A S A O E E P O G U O O V L U D O S T O Y U Y X U O R J U N I T R O G E N C Y C L E I V E E W V E A L B O R K Y T R A C E B A S E S R K H L E E Y