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EUROPEAN UNION · IT ALL STARTED WITH SUGAR
GLOBAL WARMING · ARE YOU ALREADY BUILDING YOUR OWN ARK
GREENHOUSE EFFECT · THE RESULT OF EDUCATION OF PLANTS
HOW LONG AGO HAVE YOU LOOKED AT THE SKY
THAT WHAT IS NEVER TOO LATE TO DO · WE MUST DO BEFORE ALL
WHAT IF ONE DAY CHILDREN WILL STOP ASKING
 

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